Relative Intelligence · US Small-Cap Equity

How iShares Russell 2000 ETF (IWM) compares with the whole market and its popular alternatives
Built by QuantCommons' quantitative engine, this page is about relative opportunity, not data on IWM alone. It places IWM (iShares Russell 2000 ETF) against 19 popular alternatives, its neighboring categories and the entire market of over 10,000 U.S.-listed stocks and ETFs, and surfaces what has done better on consistent outperformance, return for the risk taken, behavior in real market crashes and diversification. The result is a clearer view of where IWM stands in the market, and of the alternatives worth a closer look.
Period covered: IWM's full trading record, from May 2000 through September 2026. The crash tests reach back to 2000 using older funds and the S&P 500. All returns include reinvested dividends. Data as of October 20, 2026.
Data as of October 20, 2026. Full tables and charts read best on a larger screen.
On this page12 sections
Key findings
- What you're buyingIWM's 0.19% fee costs about $320 more than SCHA's 0.03% on $10,000 over 20 years, for a fund that tracks the same thing. A correlation of 0.98 with VB (Vanguard Morningstar Small-Cap ETF) over 5 years: effectively the same bet as the larger fund. Better options ↓
- Right nowOver the past 3 months, IWM fell 5.4% while the S&P 500 rose 3.9%. At a glance ↓
- Fund or market?IWM fell 5.4% over the past 3 months even as the S&P 500 rose 3.9%.
- Long termIWM turned $10,000 into $25,800 over the past decade, against $42,100 in the S&P 500. Growth of $10,000 ↓
- In a crashIWM has tended to fall harder than the S&P 500 in crashes, about 1.3 times the index's decline. Crash tests ↓
- DiversificationAgainst the S&P 500, IWM has a correlation of 0.84 over 5 years, more closely than 73% of ETFs with at least $100 million in assets. Next to an index fund it is more of the same, not a cushion. Market capture ↓
- Better options
- Popular alternatives
- SPY (State Street SPDR S&P 500 ETF), SMLF (iShares U.S. Small-Cap Equity Factor ETF) and IJH (iShares Core S&P Mid-Cap ETF) earned more than IWM with less volatility over the past 5 years. SPY returned 12.7% a year at 17.1% volatility, against 5.2% a year at 22.4%.
- Nearby categories and themes
- VTI (Vanguard Morningstar Total Stock Market ETF, US total market) and MGV (Vanguard Morningstar Mega Cap Value ETF, US large-cap value) earned more than IWM with less volatility over the past 5 years. VTI returned 11.5% a year at 17.5% volatility, against 5.2% a year at 22.4%.
- Versus the S&P 500
- Simply owning the S&P 500 would have done better over the past 5 years: 12.7% a year at 17.1% volatility, against 5.2% at 22.4% for IWM.
How much would $10,000 in IWM have grown?
This chart tracks a hypothetical $10,000 investment in IWM over the past 22 years, with dividends reinvested, alongside the same amount in the S&P 500, investments that ended ahead of IWM over the same span and IWM's popular alternatives, among those that traded for the entire period. A second view covers the past 5 years, the period the better options further down the page are judged on. It shows not only where each investment ended up but also how smooth or uneven the path was.
Note: The chart covers the past 22 years rather than IWM's full 26 years, because most of its popular alternatives have not traded that long.
- $10,000 invested in IWM at the end of September 2004 would have grown to $65,295 by September 2026, less than the $102,174 it would have become in SPY, an S&P 500 fund.
- Five of the six other investments on the chart ended ahead of IWM, and VTI finished highest, at $103,071.
Choose a period
From the end of September 2004 to the end of September 2026. Hover over a fund in the key to pick out its line. 735 of the 1,487 stocks and funds worth at least $500 million that traded the whole period ended ahead of IWM; the chart shows 5, closest alternatives first. The other 1 line is a popular alternative, shown for context.
- VTI$103,071+931% total · +11.2% a year
- SPY (S&P 500)$102,174+922% total · +11.1% a year
- IJH$82,519+725% total · +10.1% a year
- IJR$75,619+656% total · +9.6% a year
- VB$75,500+655% total · +9.6% a year
- IWO$71,186+612% total · +9.3% a year
- IWM$65,295+553% total · +8.9% a year
- IWN$55,927+459% total · +8.1% a year
From the end of September 2021 to the end of September 2026. Hover over a fund in the key to pick out its line. 1,867 of the 3,628 stocks and funds worth at least $500 million that traded the whole period ended ahead of IWM; the chart shows 5, closest alternatives first. The other 3 lines are popular alternatives, shown for context.
- SPY (S&P 500)$19,000+90.0% total · +13.7% a year
- MGV$18,512+85.1% total · +13.1% a year
- VTI$18,064+80.6% total · +12.6% a year
- SMLF$16,583+65.8% total · +10.6% a year
- FYX$15,610+56.1% total · +9.3% a year
- IJH$14,693+46.9% total · +8.0% a year
- FNDA$14,263+42.6% total · +7.4% a year
- SCHA$13,981+39.8% total · +6.9% a year
- IWM$13,514+35.1% total · +6.2% a year
- IJR$13,479+34.8% total · +6.2% a year
IWM at a glance
This section summarizes the key facts about the fund, its returns over periods from one to ten years and the risk it has carried, with dividends reinvested throughout. These figures serve as the baseline for every comparison that follows.
- IWM's deepest decline since it began trading in 2000 was 59.1%, from July 2007 to March 2009. It took 23 months from the low to climb back to its old high.
- Over 25 full calendar years, IWM's best was 2003, when it returned 47.4%, and its worst was 2008, when it lost 34.1%. It lost money in seven of those years.
- IWM is 9.4% below its all-time high.
The fund
- Issuer
- IShares
- Began trading
- May 2000
- Expense ratio
- 0.19%per year
- Assets
- $75B
- Category
- Broad Market
Returns
- Past 1 year
- +12.3%total return
- Past 3 years
- +71.3%+19.7% a year
- Past 5 years
- +29.0%+5.2% a year
- Past 10 years
- +158%+9.9% a year
- Best calendar year
- +47.4%2003
- Worst calendar year
- −34.1%2008
- Losing years
- 7 of 25full calendar years
Risk
- Volatility
- 22.4%typical yearly swing, 5 years
- Sharpe ratio
- 0.34return per unit of risk, 5 years
- Worst decline ever
- −59.1%Jul 2007 to Mar 2009
- From its all-time high
- −9.4%below the peak
IWM against the whole market
Where IWM ranks among every stock and fund, and what across the market has done better.
How does IWM rank among all ETFs?
This section ranks IWM on return, volatility, risk-adjusted return and worst decline against every ETF worth at least $100 million with enough history. Where the comparisons with its popular alternatives show how IWM stacks up against its peers, these rankings show where it stands in the market as a whole.
- IWM is among the more volatile ETFs: its price swings rank in the bottom 18% of the 1,560 ETFs with at least $100 million in assets, where the top is the calmest.
Ranked against U.S.-listed ETFs with at least $100M in assets that have enough history for each measure, so the count changes from row to row; smaller ETFs and leveraged funds are left out. Lower volatility and smaller declines rank higher.
| Measure | IWM | Rank | Standing |
|---|---|---|---|
| 1-year return | +12.3% | 1,070 of 2,485 | top 43% |
| 3-year return | +71.3% | 756 of 1,949 | top 39% |
| 5-year return | +29.0% | 1,015 of 1,560 | bottom 36% |
| 10-year return | +158% | 440 of 958 | top 46% |
| Volatility, 5 years | 22.4% | 1,276 of 1,560 | bottom 19% |
| Sharpe ratio, 5 years | 0.34 | 1,169 of 1,560 | bottom 26% |
| Worst decline, past 10 years | −41.1% | 579 of 951 | bottom 40% |
What has beaten IWM on both return and risk?
Each dot is an investment, placed by how much it earned a year over the past 5 years (higher is better) and how much its price swung, its volatility (further left is calmer). IWM sits where the dashed lines cross. Anything in the green box above and to the left earned more than IWM with smaller swings, a better trade-off over this period on both counts. Past results are no promise, but a name in the box is worth a closer look.
- 49 stocks and 483 ETFs worth at least $500 million sit in the green region: each earned more than IWM over the past 5 years with smaller price swings. That is 15% of the 3,633 screened.
- Among those with at least half IWM's swings, DXJ has the best return for its risk: 26.6% a year at 19.1% volatility, 15% less than IWM's 22.4%, and a Sharpe ratio (return above cash per unit of volatility) of 1.34 against 0.34 for IWM.
- Among IWM's popular alternatives, SPY, SMLF and IJH are in the region. SPY earned 12.7% a year against 5.2% a year for IWM, at 17.1% volatility, 23% less than IWM's 22.4%.
Annual return is the annualized total return with dividends reinvested, and volatility the annualized swing in daily prices, both over 5 years. Labeled dots are the strongest picks from the table below and the names called out above, colored by how close they sit to IWM; faint dots are 89 more of the 532 in the green region (the strongest, one per fund family). 3,633 stocks and funds worth at least $500 million were screened. Hover over a dot for its figures.
- Popular alternatives
- Same and neighboring categories, and shared themes
- The whole market
- Others in the green region
Is there a better investment than IWM?
Investments that beat IWM over the past 5 years on return, volatility, drawdowns, consistency, crash losses or fees, from its popular alternatives out to the whole market.
- Among IWM's popular alternatives, SPY, SMLF and IJH earned more than IWM with less volatility over the past 5 years. SPY returned 12.7% a year at 17.1% volatility, against 5.2% a year at 22.4%.
- A cheaper fund that has kept up over the past decade is SCHA (0.03% a year against 0.19%).
- Looking beyond its popular alternatives, VTI (US total market) and MGV (US large-cap value) earned more than IWM with less volatility over the past 5 years. VTI returned 11.5% a year at 17.5% volatility, against 5.2% a year at 22.4%.
How this works
The table below lists investments that beat IWM over the past 5 years on at least one of these measures: a higher annual return with lower volatility, a higher annual return at similar volatility, a similar return with lower volatility, a higher Sharpe ratio with a smaller worst decline, a higher total return in most periods from 3 months to 10 years, or smaller losses in recent market crashes, and, for funds, the same exposure at a lower expense ratio. It checks IWM's popular alternatives first, then the rest of its own and neighboring categories, then every stock and fund worth at least $500 million, and shows the strongest few in each group. The full list of those with a higher return and lower volatility than IWM follows the table.
Annual return is the annualized total return with dividends reinvested. Annual return, volatility and the Sharpe ratio cover 5 years; the worst decline covers the past 10 years. Green marks a better figure than IWM's. "On the frontier" means no other option shown or tested earned more with less volatility. Funds that hold the same thing are shown once. Beyond the popular alternatives, nothing with more than 1.5× IWM's volatility counts as better.
These figures cover the past 5 years. Green marks a better figure than IWM's.
| Investment | Why it is better | Past 5 years | Downside | Long run | Fit | ||||
|---|---|---|---|---|---|---|---|---|---|
| Annual return?higher is better | Volatility?lower is calmer | Sharpe?return per unit of risk | Worst decline?past 10 years | 10Y returntotal | Corr. with IWM?lower diversifies more | Expenseper year | |||
| +5.2% | 22.4% | 0.34 | −41.1% | +158% | 1.00 | 0.19% | |||
| +12.7% | 17.1% | 0.79 | −33.7% | +321% | 0.84 | 0.09% | |||
| Popular alternativesbest 5 shownThe investments people most often weigh against IWM. 13 of 18 passed at least one test. | |||||||||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +12.7% | 17.1% | 0.79 | −33.7% | +321% | 0.84 | 0.09% | ||
SMLFiShares U.S. Small-Cap Equity Factor ETF · US Small-Cap Equity | Higher return, lower volatilityHigher return in most periodsSame exposure, lower expense ratio | +10.0% | 21.0% | 0.56 | −41.9% | +206% | 0.98 | 0.15% | |
| Higher return, lower volatilityHigher return in most periods | +7.2% | 19.6% | 0.45 | −42.2% | +178% | 0.96 | 0.05% | ||
FYXFirst Trust Small Cap Core AlphaDEX Fund · Broad Market | Higher return, similar volatilityHigher return in most periods | +8.7% | 21.7% | 0.49 | −48.8% | +216% | 0.98 | 0.58% | |
SCZiShares MSCI EAFE Small-Cap ETF · International Equity | Similar return, lower volatility | +4.9% | 16.8% | 0.37 | −41.1% | +114% | 0.75 | 0.40% | |
| Same and neighboring categories, and shared themesbest 6 shownEverything else in US Small-Cap Equity and the categories next to it (US Mid-Cap Equity, US Total Market, International Equity, US Large-Cap Equity), plus IWM's specific themes. 135 of 147 passed at least one test. | |||||||||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +11.5% | 17.5% | 0.71 | −35.0% | +302% | 0.88 | 0.03% | ||
MGVVanguard Morningstar Mega Cap Value ETF · US Large-Cap Value | Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +12.6% | 13.4% | 0.95 | −35.4% | +244% | 0.82 | 0.05% | |
RWLInvesco S&P 500 Revenue ETF · US Large-Cap Equity | Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +13.7% | 14.4% | 0.97 | −36.1% | +287% | 0.88 | 0.39% | |
MOATVanEck Morningstar Wide Moat ETF · US Large-Cap Equity | Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +9.1% | 18.4% | 0.57 | −33.3% | +276% | 0.82 | 0.46% | |
| Higher return, similar volatilityHigher Sharpe, smaller worst declineHigher return in most periods | +14.5% | 23.0% | 0.71 | −35.1% | +553% | 0.72 | 0.18% | ||
| Similar return, lower volatility | +5.2% | 17.5% | 0.38 | −36.4% | +102% | 0.55 | 0.06% | ||
| The whole marketbest 8 shownEvery other stock and fund worth at least $500 million. 951 of 3,469 passed at least one test. | |||||||||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +12.7% | 17.9% | 0.76 | −27.4% | +196% | 0.25 | — | ||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +11.5% | 20.9% | 0.63 | −32.6% | +394% | 0.49 | — | ||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +10.4% | 14.1% | 0.78 | −31.7% | +258% | 0.84 | 0.04% | ||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +9.7% | 14.3% | 0.72 | −33.4% | +252% | 0.75 | 0.06% | ||
| Higher return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +13.9% | 18.5% | 0.80 | −34.0% | +446% | 0.25 | — | ||
| Higher return, similar volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +14.8% | 23.6% | 0.71 | −32.8% | +625% | 0.48 | — | ||
FTCSFirst Trust Capital Strength ETF · US Quality Equity | Similar return, lower volatilityHigher Sharpe, smaller worst declineHigher return in most periodsSmaller losses in recent crashes | +6.2% | 13.2% | 0.52 | −31.9% | +188% | 0.73 | 0.53% | |
| Higher return in most periodsSame exposure, lower expense ratio | +4.9% | 22.4% | 0.33 | −41.7% | +194% | 0.97 | 0.05% | ||
What these numbers mean for IWM
- Annual return
- IWM returned 5.2% a year over the past 5 years with dividends reinvested, against 12.7% a year for the S&P 500. At that pace, $10,000 became about $12,900. Annual return is the steady yearly rate that would produce the same total result, so investments held over the same span compare fairly. Guide: What is performance and return? →
- Volatility
- IWM's volatility over the past 5 years was 22.4%, 1.3 times the S&P 500's 17.1%. Volatility measures how widely returns swing around their average: in roughly two years out of three, IWM's return lands within 22.4% of its average, either way. The higher it is, the rougher the ride and the harder it is to hold through a slump. Guide: Understanding and measuring risk (volatility) →
- Sharpe ratio
- IWM's Sharpe ratio over the past 5 years was 0.34, against 0.79 for the S&P 500, so IWM earned less for each unit of risk than an index fund did. The Sharpe ratio is the return earned above cash for each unit of volatility: two investments with the same return are not equal if one got there with far bigger swings. Guide: Balancing reward with risk (Sharpe ratio) →
- Worst decline
- IWM's worst fall from a peak to a low over the past 10 years was 41.1%, against 33.7% for the S&P 500. Losses and gains are not symmetric: climbing back from a 41.1% fall takes a 69.9% gain. Guide: Market crash risk and tail risk →
- Correlation
- Over the past 5 years, IWM's monthly returns had a correlation of 0.84 with the S&P 500. Correlation runs from 1 (moving in lockstep) through 0 (unrelated) to −1 (moving in opposite directions). They move almost in lockstep, so holding both adds little diversification. In the table, the correlation column measures each option against IWM instead: the lower it is, the more that option would diversify a IWM holding. Guide: Correlation and diversification →
Show all 532 stocks and funds worth at least $500 million that earned more than IWM with less volatility
Out of 3,633 tested over 5 years. The strongest 100 are listed, best first, with funds that hold the same thing listed once.
| # | Investment | Found in | Annual return | Volatility | Sharpe | Worst decline | 10Y return | Corr. with IWM | Expense |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Whole market | +12.7% | 17.9% | 0.76 | −27.4% | +196% | 0.25 | — | |
| 2 | Whole market | +11.5% | 20.9% | 0.63 | −32.6% | +394% | 0.49 | — | |
| 3 | Whole market | +10.4% | 14.1% | 0.78 | −31.7% | +258% | 0.84 | 0.04% | |
| 4 | Whole market | +9.7% | 14.3% | 0.72 | −33.4% | +252% | 0.75 | 0.06% | |
| 5 | Whole market | +13.9% | 18.5% | 0.80 | −34.0% | +446% | 0.25 | — | |
| 6 | Whole market | +9.3% | 19.2% | 0.56 | −30.1% | +344% | 0.26 | — | |
| 7 | Same or nearby category | +11.5% | 17.5% | 0.71 | −35.0% | +302% | 0.88 | 0.03% | |
| 8 | Same or nearby category | +12.8% | 16.9% | 0.80 | −34.0% | +324% | 0.84 | 0.03% | |
| 9 | Whole market | +8.4% | 15.3% | 0.60 | −28.4% | +202% | 0.54 | 0.08% | |
| 10 | USMViShares MSCI USA Min Vol Factor ETF · US Low-Volatility Equity | Whole market | +7.6% | 12.3% | 0.66 | −33.1% | +176% | 0.70 | 0.15% |
| 11 | SPHQInvesco S&P 500 Quality ETF · US Quality Equity | Whole market | +12.0% | 16.7% | 0.76 | −31.6% | +300% | 0.80 | 0.20% |
| 12 | IOOiShares Global 100 ETF · Global Equity | Whole market | +15.7% | 17.2% | 0.94 | −31.4% | +361% | 0.73 | 0.40% |
| 13 | Whole market | +13.4% | 17.1% | 0.82 | −29.6% | +274% | 0.44 | — | |
| 14 | NOBLProShares - S&P 500 Dividend Aristocrats ETF · US Dividend Equity | Whole market | +6.5% | 14.5% | 0.51 | −35.4% | +172% | 0.78 | 0.35% |
| 15 | MGVVanguard Morningstar Mega Cap Value ETF · US Large-Cap Value | Same or nearby category | +12.6% | 13.4% | 0.95 | −35.4% | +244% | 0.82 | 0.05% |
| 16 | IWXiShares Russell Top 200 Value ETF · Broad Market | Whole market | +12.7% | 13.8% | 0.94 | −35.8% | +221% | 0.83 | 0.20% |
| 17 | RWLInvesco S&P 500 Revenue ETF · US Large-Cap Equity | Same or nearby category | +13.7% | 14.4% | 0.97 | −36.1% | +287% | 0.88 | 0.39% |
| 18 | PTLCPacer Trendpilot US Large Cap ETF · Broad Market | Whole market | +9.5% | 11.8% | 0.83 | −26.6% | +188% | 0.66 | 0.60% |
| 19 | EQWLInvesco S&P 100 Equal Weight ETF · Broad Market | Whole market | +11.6% | 15.0% | 0.81 | −34.3% | +291% | 0.87 | 0.30% |
| 20 | AOAiShares Core 80/20 Aggressive Allocation ETF · Multi-Asset | Whole market | +8.6% | 13.1% | 0.69 | −28.4% | +165% | 0.85 | 0.19% |
| 21 | Whole market | +17.1% | 20.7% | 0.87 | −26.8% | +226% | 0.30 | — | |
| 22 | MOATVanEck Morningstar Wide Moat ETF · US Large-Cap Equity | Same or nearby category | +9.1% | 18.4% | 0.57 | −33.3% | +276% | 0.82 | 0.46% |
| 23 | FHLCFidelity MSCI Health Care Index ETF · Healthcare | Whole market | +7.3% | 15.4% | 0.53 | −28.8% | +199% | 0.61 | 0.08% |
| 24 | IHDGWisdomTree International Hedged Quality Dividend Growth Fund · International | Whole market | +7.6% | 14.9% | 0.57 | −29.2% | +163% | 0.72 | 0.58% |
| 25 | LVHIFranklin International Low Volatility High Dividend Index ETF · International Equity | Same or nearby category | +17.0% | 11.1% | 1.48 | −32.4% | +194% | 0.54 | 0.40% |
| 26 | PTNQPacer Trendpilot 100 ETF · Technology | Whole market | +9.7% | 14.1% | 0.73 | −28.1% | +305% | 0.56 | 0.65% |
| 27 | EQLALPS Equal Sector Weight ETF · Broad Market | Whole market | +13.5% | 14.5% | 0.94 | −34.2% | +387% | 0.84 | 0.19% |
| 28 | ROUSHartford Multifactor US Equity ETF · Broad Market | Whole market | +12.3% | 14.4% | 0.88 | −35.5% | +238% | 0.88 | 0.19% |
| 29 | DGTState Street SPDR Global Dow ETF · International | Whole market | +13.8% | 15.1% | 0.94 | −34.4% | +261% | 0.77 | 0.50% |
| 30 | QDEFNorthern Trust Quality Dividend Defensive ETF · Dividend & Income | Whole market | +12.7% | 13.7% | 0.94 | −35.7% | +228% | 0.82 | 0.40% |
| 31 | Whole market | +14.7% | 16.8% | 0.91 | −37.0% | +204% | 0.22 | — | |
| 32 | OUSAALPS Funds O’Shares U.S. Quality Dividend ETF · Dividend & Income | Whole market | +9.4% | 13.4% | 0.74 | −33.1% | +186% | 0.74 | 0.48% |
| 33 | Whole market | +10.3% | 16.2% | 0.69 | −34.2% | +223% | 0.86 | 0.06% | |
| 34 | Whole market | +14.7% | 17.5% | 0.87 | −34.7% | — | 0.85 | 0.26% | |
| 35 | SPMOInvesco S&P 500 Momentum ETF · US Momentum Equity | Whole market | +18.7% | 20.8% | 0.93 | −30.9% | +499% | 0.71 | 0.13% |
| 36 | IUSGiShares Core S&P U.S. Growth ETF · US Growth Equity | Whole market | +12.9% | 21.2% | 0.68 | −32.4% | +405% | 0.75 | 0.04% |
| 37 | Same or nearby category | +8.2% | 16.4% | 0.57 | −36.0% | +140% | 0.72 | 0.05% | |
| 38 | Whole market | +17.3% | 18.2% | 0.97 | −40.0% | +352% | 0.66 | — | |
| 39 | Same or nearby category | +9.3% | 16.9% | 0.61 | −35.8% | +153% | 0.74 | 0.03% | |
| 40 | JQUAJPMorgan U.S. Quality Factor ETF · US Quality Equity | Whole market | +13.6% | 15.7% | 0.89 | −32.9% | — | 0.83 | 0.12% |
| 41 | Whole market | +17.7% | 18.9% | 0.96 | −26.4% | +213% | 0.12 | 0.40% | |
| 42 | DFIVDimensional - International Value ETF · International Equity | Same or nearby category | +14.8% | 16.4% | 0.93 | −25.4% | — | 0.64 | 0.27% |
| 43 | USMCPrincipal U.S. Mega-Cap ETF · Broad Market | Whole market | +14.1% | 16.4% | 0.89 | −30.0% | — | 0.76 | 0.12% |
| 44 | AVLVAvantis U.S. Large Cap Value ETF · US Large-Cap Value | Same or nearby category | +14.0% | 16.9% | 0.86 | −19.5% | — | 0.90 | 0.15% |
| 45 | TDIVFirst Trust NASDAQ Technology Dividend Index Fund · Technology Equity | Whole market | +16.2% | 21.3% | 0.81 | −32.0% | +388% | 0.71 | 0.50% |
| 46 | Whole market | +23.5% | 18.8% | 1.22 | −75.2% | +350% | 0.45 | — | |
| 47 | HDViShares Core High Dividend ETF · US Dividend Equity | Whole market | +12.9% | 13.0% | 1.00 | −37.0% | +172% | 0.61 | 0.08% |
| 48 | DBEFXtrackers MSCI EAFE Hedged Equity ETF · International Equity | Same or nearby category | +13.1% | 13.8% | 0.96 | −32.5% | +206% | 0.72 | 0.35% |
| 49 | AVEMAvantis Emerging Markets Equity ETF · Emerging Markets Equity | Same or nearby category | +9.3% | 19.5% | 0.56 | −36.0% | — | 0.58 | 0.33% |
| 50 | SPUSSP Funds S&P 500 Sharia Industry Exclusions ETF · Technology | Whole market | +15.0% | 19.5% | 0.82 | −30.8% | — | 0.75 | 0.45% |
| 51 | EWJiShares MSCI Japan ETF · International Equity | Same or nearby category | +9.2% | 18.8% | 0.57 | −33.1% | +132% | 0.69 | 0.49% |
| 52 | DIVIFranklin International Core Dividend Tilt Index ETF · International | Whole market | +13.4% | 15.5% | 0.89 | −27.7% | +184% | 0.67 | 0.09% |
| 53 | FVFirst Trust Dorsey Wright Focus 5 ETF · Broad Market | Whole market | +9.7% | 21.1% | 0.55 | −34.0% | +247% | 0.85 | 0.30% |
| 54 | FLQLFranklin U.S. Large Cap Multifactor Index ETF · Broad Market | Whole market | +13.8% | 16.3% | 0.88 | −33.6% | — | 0.83 | 0.15% |
| 55 | JMOMJPMorgan U.S. Momentum Factor ETF · Broad Market | Whole market | +12.9% | 19.1% | 0.73 | −34.3% | — | 0.85 | 0.12% |
| 56 | HFXINYLI FTSE International Equity Currency Neutral ETF · International | Whole market | +11.4% | 15.3% | 0.79 | −32.4% | +180% | 0.74 | 0.19% |
| 57 | Whole market | +12.4% | 20.2% | 0.68 | −32.9% | +185% | 0.41 | — | |
| 58 | FDLFirst Trust Morningstar Dividend Leaders Index Fund · US Dividend Equity | Whole market | +13.9% | 14.4% | 0.98 | −41.4% | +199% | 0.63 | 0.43% |
| 59 | IDMOInvesco S&P International Developed Momentum ETF · International Equity | Same or nearby category | +13.3% | 18.2% | 0.78 | −31.3% | +229% | 0.73 | 0.25% |
| 60 | Same or nearby category | +11.4% | 14.7% | 0.81 | −38.5% | +205% | 0.88 | 0.18% | |
| 61 | IPACiShares Core MSCI Pacific ETF · International | Whole market | +8.2% | 16.9% | 0.55 | −31.0% | +126% | 0.72 | 0.09% |
| 62 | RODMHartford Multifactor Developed Markets (ex-US) ETF · International | Whole market | +10.6% | 13.5% | 0.82 | −36.0% | +141% | 0.68 | 0.29% |
| 63 | Same or nearby category | +6.8% | 17.6% | 0.47 | −39.4% | +198% | 0.93 | 0.03% | |
| 64 | INFLHorizon Kinetics Inflation Beneficiaries ETF · Broad Market | Whole market | +11.8% | 17.8% | 0.72 | −21.3% | — | 0.67 | 0.85% |
| 65 | FDLOFidelity Low Volatility Factor ETF · Broad Market | Whole market | +9.8% | 13.0% | 0.79 | −34.4% | +249% | 0.76 | 0.15% |
| 66 | QGROAmerican Century U.S. Quality Growth ETF · Broad Market | Whole market | +9.9% | 21.2% | 0.55 | −32.6% | — | 0.82 | 0.29% |
| 67 | DBJPXtrackers MSCI Japan Hedged Equity ETF · International | Whole market | +20.9% | 19.2% | 1.09 | −31.3% | +348% | 0.53 | 0.45% |
| 68 | ATOAtmos Energy Corporation · Gas Utilities | Whole market | +14.9% | 18.4% | 0.85 | −32.9% | +194% | 0.48 | — |
| 69 | SMLFiShares U.S. Small-Cap Equity Factor ETF · US Small-Cap Equity | Popular alternative | +10.0% | 21.0% | 0.56 | −41.9% | +206% | 0.98 | 0.15% |
| 70 | FTXHFirst Trust Nasdaq Pharmaceuticals ETF · Healthcare | Whole market | +11.9% | 16.9% | 0.75 | −32.1% | +153% | 0.55 | 0.60% |
| 71 | HLALWahed FTSE USA Shariah ETF · Broad Market | Whole market | +14.0% | 18.0% | 0.82 | −33.6% | — | 0.78 | 0.50% |
| 72 | NTSXWisdomTree U.S. Efficient Core Fund · Alternatives | Whole market | +8.2% | 17.2% | 0.55 | −31.4% | — | 0.83 | 0.20% |
| 73 | IDHQInvesco S&P International Developed Quality ETF · International | Whole market | +10.0% | 17.9% | 0.63 | −33.6% | +183% | 0.70 | 0.29% |
| 74 | QQQEDirexion NASDAQ-100 Equal Weighted Index ETF · Broad Market | Whole market | +8.1% | 20.7% | 0.48 | −32.1% | +294% | 0.85 | 0.35% |
| 75 | SIXAETC 6 Meridian Mega Cap Equity ETF · Broad Market | Whole market | +12.8% | 12.7% | 1.01 | −18.4% | — | 0.77 | 0.31% |
| 76 | NINiSource Inc · Gas Utilities | Whole market | +15.1% | 20.3% | 0.80 | −30.9% | +158% | 0.46 | — |
| 77 | WECWEC Energy Group, Inc. · Electric Utilities | Whole market | +7.2% | 19.0% | 0.46 | −32.3% | +159% | 0.37 | — |
| 78 | SFYSoFi Select 500 ETF · Broad Market | Whole market | +13.9% | 19.4% | 0.77 | −33.3% | — | 0.82 | 0.19% |
| 79 | AEEAmeren Corporation · Electric Utilities | Whole market | +7.9% | 19.4% | 0.49 | −29.1% | +192% | 0.37 | — |
| 80 | VSLUApplied Finance Valuation Large Cap ETF · Broad Market | Whole market | +13.7% | 16.2% | 0.88 | −23.8% | — | 0.79 | 0.49% |
| 81 | NXTGFirst Trust Indxx NextG ETF · Technology | Whole market | +16.2% | 19.1% | 0.89 | −33.6% | +330% | 0.68 | 0.70% |
| 82 | DJDInvesco Dow Jones Industrial Average Dividend ETF · Dividend & Income | Whole market | +11.8% | 13.3% | 0.91 | −34.7% | +227% | 0.74 | 0.07% |
| 83 | JHEMJohn Hancock Multifactor Emerging Markets ETF · International | Whole market | +7.1% | 18.6% | 0.46 | −35.0% | — | 0.59 | 0.49% |
| 84 | PJPInvesco Pharmaceuticals ETF · Healthcare | Whole market | +11.2% | 16.6% | 0.72 | −34.0% | +135% | 0.57 | 0.58% |
| 85 | Whole market | +15.8% | 20.0% | 0.84 | −42.0% | +310% | 0.62 | — | |
| 86 | XMHQInvesco S&P MidCap Quality ETF · US Mid-Cap Equity | Same or nearby category | +9.7% | 20.5% | 0.56 | −36.9% | +240% | 0.88 | 0.30% |
| 87 | BIBLInspire 100 ETF · Broad Market | Whole market | +7.9% | 20.0% | 0.48 | −36.1% | — | 0.91 | 0.41% |
| 88 | DXJWisdomTree Japan Hedged Equity Fund · International Equity | Same or nearby category | +26.6% | 19.1% | 1.34 | −39.1% | +428% | 0.41 | 0.48% |
| 89 | QYLDGlobal X - Nasdaq 100 Covered Call ETF · Equity Income | Whole market | +8.4% | 15.0% | 0.62 | −24.7% | +156% | 0.64 | 0.60% |
| 90 | Whole market | +15.7% | 20.4% | 0.82 | −42.6% | +248% | 0.36 | — | |
| 91 | LGLVState Street SPDR US Large Cap Low Volatility Index ETF · Broad Market | Whole market | +7.6% | 13.0% | 0.63 | −36.6% | +199% | 0.72 | 0.12% |
| 92 | Whole market | +16.4% | 17.1% | 0.98 | −58.1% | +178% | 0.47 | — | |
| 93 | IDOGALPS International Sector Dividend Dogs ETF · International | Whole market | +14.1% | 15.6% | 0.93 | −37.3% | +180% | 0.53 | 0.50% |
| 94 | Whole market | +12.9% | 19.9% | 0.71 | −46.9% | +187% | 0.74 | — | |
| 95 | BALTInnovator Defined Wealth Shield ETF · Crypto | Whole market | +6.3% | 3.3% | 1.85 | −4.9% | — | 0.69 | 0.69% |
| 96 | Whole market | +11.2% | 20.8% | 0.62 | −37.4% | +319% | 0.05 | — | |
| 97 | Whole market | +19.0% | 20.8% | 0.95 | −54.9% | +335% | 0.42 | — | |
| 98 | SDCIUSCF SummerHaven Dynamic Commodity Strategy No K-1 Fund · Bonds | Whole market | +20.6% | 18.4% | 1.12 | −45.7% | — | 0.06 | 0.80% |
| 99 | Whole market | +11.7% | 19.4% | 0.67 | −50.8% | +255% | 0.59 | — | |
| 100 | Whole market | +8.6% | 18.3% | 0.54 | −42.9% | +241% | 0.78 | 0.08% |
See everything that outperformed IWM →
IWM against its popular alternatives
The investments people most often weigh against IWM, compared period by period and year by year.
How do IWM's risk and return compare with its alternatives?
This map plots each investment's annual return over the past 5 years against its volatility, the size of its typical price swings. Investments toward the upper left earned more for a smoother ride, and those toward the lower right earned less for a rougher one. The dashed lines cross at IWM, which divides the map into what did better or worse on each measure.
- 11 of the 16 popular alternatives, led by SMLF, FYX and IJH, were both more rewarding and calmer than IWM over the past 5 years, earning a higher annual return with lower volatility.
- Over the past 5 years, IWM returned 5.2% a year, less than the S&P 500's 12.7%, with higher volatility (22.4% against 17.1%).
Green points earned more than IWM with less volatility; red points earned less with more. Hover over a point for its figures. Total returns with dividends reinvested, annualized.
All figures
| Investment | Annual return | Volatility |
|---|---|---|
| SPY S&P 500State Street SPDR S&P 500 ETF | +12.7% | 17.1% |
| SMLF iShares U.S. Small-Cap Equity Factor ETF | +10.0% | 21.0% |
| FYX First Trust Small Cap Core AlphaDEX Fund | +8.7% | 21.7% |
| CALF Pacer US Small Cap Cash Cows ETF | +7.2% | 23.0% |
| IJH iShares Core S&P Mid-Cap ETF | +7.2% | 19.6% |
| DFAS Dimensional - US Small Cap ETF | +7.1% | 20.5% |
| FNDA Schwab Fundamental U.S. Small Company Index ETF | +6.8% | 20.6% |
| IWN iShares Russell 2000 Value ETF | +6.8% | 21.1% |
| VB Vanguard Morningstar Small-Cap ETF | +6.2% | 20.6% |
| SCHA Schwab U.S. Small-Cap ETF | +6.0% | 22.0% |
| IJR iShares Core S&P Small-Cap ETF | +5.6% | 21.1% |
| VTWO Vanguard Russell 2000 ETF | +5.4% | 22.4% |
| SMDV ProShares S&P SmallCap 600 Dividend Aristocrats ETF | +5.3% | 18.4% |
| IWM This pageiShares Russell 2000 ETF | +5.2% | 22.4% |
| OMFS Invesco Russell 2000 Dynamic Multifactor ETF | +5.1% | 20.9% |
| IWC iShares Micro-Cap ETF | +5.1% | 24.4% |
| SCZ iShares MSCI EAFE Small-Cap ETF | +4.9% | 16.8% |
| IWO iShares Russell 2000 Growth ETF | +3.5% | 24.6% |
Has IWM consistently beaten its popular alternatives?
This section compares IWM with the investments people most often weigh against it, checking each one over eight periods from one month to ten years. Counting how often an alternative earned more than IWM helps separate lasting outperformance from a single strong stretch.
- Nine of the 19 popular alternatives, led by SPY, FYX and SMLF, outperformed IWM in at least 3 of 5 short-term and 2 of 3 long-term timeframes.
- SPY, FYX and SMLF outperformed IWM in every long-term period and in all but one short-term period, the most consistent record in the group.
- SPY, DFAS and SMDV earned more for the risk they took than IWM (a higher Sharpe ratio) and fell less in their worst decline of the past 10 years.
A green cell means the alternative earned more than IWM over that period. "Qualified" marks those that did so in at least 3 of 5 short-term periods and 2 of 3 long-term periods.
| Investment | Periods outperformed | Short term | Long term | Risk · 5 years | Fund | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1M | 3M | 6M | YTD | 1Y | 3Y | 5Y | 10Y | Volatilitylower is calmer | Sharpehigher is better | Worst declinepast 10 years | Expense | Assets | Overlapsame sectors | ||
| IWM iShares Russell 2000 ETF (this page) | — | −3.4% | −5.4% | −0.1% | +11.6% | +12.3% | +71.3% | +29.0% | +158% | 22.4% | 0.34 | −41.1% | 0.19% | $75B | — |
| SPY QualifiedState Street SPDR S&P 500 ETF | 5/5 short3/3 longAll-weather | −0.6% | +3.9% | +9.1% | +13.5% | +15.8% | +89.3% | +81.7% | +321% | 17.1% | 0.79 | −33.7% | 0.09% | $823B | 65% |
| FYX QualifiedFirst Trust Small Cap Core AlphaDEX Fund | 5/5 short3/3 longAll-weather | −0.8% | −3.3% | +3.8% | +20.7% | +24.7% | +84.9% | +51.7% | +216% | 21.7% | 0.49 | −48.8% | 0.58% | $1.3B | 89% |
| SMLF QualifiediShares U.S. Small-Cap Equity Factor ETF | 5/5 short3/3 longAll-weather | −0.9% | −1.2% | +2.3% | +12.4% | +14.9% | +78.2% | +61.2% | +206% | 21.0% | 0.56 | −41.9% | 0.15% | $4.1B | 87% |
| FNDA QualifiedSchwab Fundamental U.S. Small Company Index ETF | 5/5 short2/3 long | −0.4% | −4.3% | +0.6% | +13.0% | +16.4% | +61.0% | +39.0% | +174% | 20.6% | 0.42 | −44.6% | 0.25% | $8.7B | 83% |
| SCHA QualifiedSchwab U.S. Small-Cap ETF | 5/5 short2/3 long | −2.8% | −3.6% | +1.1% | +13.9% | +16.5% | +73.1% | +33.9% | +165% | 22.0% | 0.38 | −42.4% | 0.03% | $21B | 92% |
| IJR QualifiediShares Core S&P Small-Cap ETF | 5/5 short2/3 long | −1.1% | −4.8% | +1.8% | +14.4% | +16.7% | +60.8% | +31.5% | +164% | 21.1% | 0.37 | −44.4% | 0.06% | $102B | 88% |
| SPSM QualifiedState Street SPDR Portfolio S&P 600 Small Cap ETF | 5/5 short2/3 long | −1.1% | −4.7% | +1.8% | +14.5% | +16.8% | +61.1% | +32.2% | +163% | 21.1% | 0.37 | −42.9% | 0.03% | $16B | 88% |
| VB QualifiedVanguard Morningstar Small-Cap ETF | 4/5 short2/3 long | −0.8% | −1.8% | +1.3% | +11.2% | +13.7% | +66.8% | +35.2% | +179% | 20.6% | 0.40 | −42.0% | 0.03% | $176B | 85% |
| IJH QualifiediShares Core S&P Mid-Cap ETF | 3/5 short2/3 long | −0.2% | −2.2% | +0.2% | +10.1% | +13.5% | +59.4% | +41.4% | +178% | 19.6% | 0.45 | −42.2% | 0.05% | $121B | 83% |
| IWN Broad MarketiShares Russell 2000 Value ETF | 5/5 short1/3 long | −2.3% | −4.1% | +2.4% | +16.6% | +19.1% | +73.2% | +38.6% | +147% | 21.1% | 0.42 | −46.1% | 0.24% | $14B | 83% |
| AVSC Broad MarketAvantis U.S. Small Cap Equity ETF | 5/5 short1/3 long | −0.4% | −2.5% | +4.0% | +20.0% | +22.7% | +73.5% | — | — | — | — | −28.4% | 0.25% | $3.1B | — |
| CALF Broad MarketPacer US Small Cap Cash Cows ETF | 5/5 short1/3 long | +4.0% | +9.4% | +19.7% | +28.6% | +35.3% | +48.8% | +41.6% | — | 23.0% | 0.42 | −47.5% | 0.59% | $3.7B | 60% |
| DFAS Broad MarketDimensional - US Small Cap ETF | 5/5 short1/3 long | −0.9% | −2.2% | +2.0% | +12.4% | +15.5% | +62.0% | +41.2% | — | 20.5% | 0.44 | −26.1% | 0.31% | $34B | 86% |
| IWC Broad MarketiShares Micro-Cap ETF | 2/5 short1/3 long | −6.8% | −6.0% | −1.8% | +12.6% | +13.8% | +97.3% | +28.0% | +161% | 24.4% | 0.33 | −47.2% | 0.60% | $1.2B | 87% |
| VTWO Broad MarketVanguard Russell 2000 ETF | 0/5 short1/3 long | −3.4% | −5.4% | 0.0% | +11.7% | +12.5% | +72.1% | +30.1% | +161% | 22.4% | 0.35 | −41.2% | 0.06% | $17B | 95% |
| SMDV Dividend & IncomeProShares S&P SmallCap 600 Dividend Aristocrats ETF | 3/5 short0/3 long | −0.5% | −5.3% | +1.1% | +12.2% | +12.1% | +46.3% | +29.7% | +97.4% | 18.4% | 0.38 | −34.1% | 0.40% | $649M | 57% |
| OMFS Broad MarketInvesco Russell 2000 Dynamic Multifactor ETF | 3/5 short0/3 long | −1.8% | −5.3% | +0.6% | +12.1% | +13.7% | +60.3% | +28.1% | — | 20.9% | 0.34 | −42.5% | 0.39% | $261M | 82% |
| SCZ InternationaliShares MSCI EAFE Small-Cap ETF | 2/5 short0/3 long | −2.7% | +1.7% | +0.2% | +8.3% | +12.3% | +72.8% | +27.1% | +114% | 16.8% | 0.37 | −41.1% | 0.40% | $13B | 73% |
| IWO Broad MarketiShares Russell 2000 Growth ETF | 0/5 short0/3 long | −4.5% | −6.7% | −2.6% | +6.8% | +6.0% | +68.9% | +18.7% | +159% | 24.6% | 0.26 | −42.0% | 0.24% | $13B | 83% |
How did IWM do year by year?
This table shows each investment's total return in every full calendar year since 2001, along with where IWM ranked among its popular alternatives each year. Annual results reveal how consistently each one kept pace with IWM and how far its good and bad years diverged, detail that multiyear averages tend to smooth over.
- IWM finished ahead of the S&P 500 in 12 of its 25 full calendar years, and behind it in each of the last five.
- Ranked against its popular alternatives each year, IWM finished in the top quarter in four of 25 years and in the bottom quarter in one. In 2025, it ranked 7 of 18.
- Among its popular alternatives, VB came out ahead of IWM most often, in 15 of the 21 years both traded.
Newest year first. Green marks a year in which the fund came out ahead of IWM; gray means the two finished within a fraction of a point. The rank row places IWM among the alternatives that traded the full year; dark green is the top quarter and red the bottom quarter.
| Investment | Years ahead of IWM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IWM This pageiShares Russell 2000 ETF | — | +12.7% | +11.4% | +16.8% | −20.5% | +14.5% | +20.0% | +25.4% | −11.1% | +14.6% | +21.6% | −4.5% | +5.0% | +38.7% | +16.7% | −4.4% | +26.9% | +28.5% | −34.2% | −1.8% | +18.3% | +4.5% | +18.0% | +47.4% | −20.3% | +1.8% |
| Rank among alternatives | Top quarter in 4 of 25 | 7 of 18 | 8 of 18 | 11 of 18 | 13 of 17 | 14 of 16 | 4 of 16 | 7 of 16 | 9 of 16 | 6 of 14 | 6 of 14 | 8 of 12 | 7 of 12 | 7 of 11 | 7 of 11 | 8 of 11 | 6 of 10 | 6 of 9 | 3 of 9 | 5 of 7 | 2 of 7 | 4 of 6 | 3 of 5 | 2 of 5 | 4 of 5 | 3 of 5 |
| SPY S&P 500State Street SPDR S&P 500 ETF | 12 of 25 | +17.7% | +24.9% | +26.2% | −18.2% | +28.7% | +18.3% | +31.2% | −4.6% | +21.7% | +12.0% | +1.2% | +13.5% | +32.3% | +16.0% | +1.9% | +15.1% | +26.4% | −36.8% | +5.1% | +15.9% | +4.8% | +10.7% | +28.2% | −21.6% | −11.7% |
| FYX First Trust Small Cap Core AlphaDEX Fund | 8 of 18 | +12.7% | +12.2% | +18.3% | −18.4% | +27.4% | +19.5% | +21.3% | −10.7% | +14.3% | +23.1% | −9.1% | +1.3% | +43.1% | +15.5% | −0.4% | +27.3% | +36.7% | −34.6% | — | — | — | — | — | — | — |
| SMLF iShares U.S. Small-Cap Equity Factor ETF | 5 of 10 | +12.3% | +16.4% | +20.0% | −12.2% | +26.6% | +8.4% | +21.6% | −8.4% | +12.7% | +20.6% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| FNDA Schwab Fundamental U.S. Small Company Index ETF | 5 of 12 | +7.5% | +9.0% | +20.3% | −14.9% | +31.1% | +8.7% | +24.3% | −11.3% | +13.6% | +24.6% | −4.3% | +8.5% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| SCHA Schwab U.S. Small-Cap ETF | 8 of 16 | +11.7% | +11.2% | +18.4% | −19.8% | +16.4% | +19.3% | +26.4% | −11.7% | +14.2% | +20.0% | −4.2% | +6.5% | +39.3% | +18.4% | −3.0% | +28.7% | — | — | — | — | — | — | — | — | — |
| IJR iShares Core S&P Small-Cap ETF | 14 of 25 | +5.9% | +8.6% | +16.1% | −16.2% | +26.6% | +11.3% | +22.8% | −8.5% | +13.2% | +26.6% | −2.1% | +5.8% | +41.4% | +16.3% | +0.8% | +26.7% | +25.9% | −31.5% | −0.5% | +15.1% | +7.5% | +22.4% | +38.5% | −14.3% | +6.5% |
| VB Vanguard Morningstar Small-Cap ETF | 15 of 21 | +8.9% | +14.2% | +18.2% | −17.5% | +17.6% | +19.2% | +27.3% | −9.3% | +16.3% | +18.4% | −3.8% | +7.6% | +37.7% | +18.3% | −2.8% | +28.1% | +36.6% | −36.2% | 0.0% | +14.4% | +6.0% | — | — | — | — |
| IJH iShares Core S&P Mid-Cap ETF | 12 of 25 | +7.4% | +13.9% | +16.4% | −13.1% | +24.7% | +13.6% | +26.1% | −11.2% | +16.3% | +20.7% | −2.3% | +9.7% | +33.5% | +17.7% | −2.2% | +26.7% | +37.9% | −36.1% | +7.3% | +9.7% | +12.8% | +16.1% | +35.3% | −14.2% | −1.4% |
| IWN iShares Russell 2000 Value ETF | 9 of 25 | +12.4% | +7.6% | +14.6% | −14.8% | +28.0% | +4.7% | +22.0% | −13.0% | +7.7% | +32.0% | −7.7% | +4.1% | +34.3% | +18.1% | −5.8% | +24.7% | +20.5% | −28.8% | −10.3% | +23.5% | +4.4% | +22.1% | +45.7% | −11.4% | +12.9% |
| AVSC Avantis U.S. Small Cap Equity ETF | 1 of 3 | +9.4% | +7.8% | +19.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| CALF Pacer US Small Cap Cash Cows ETF | 4 of 8 | +2.3% | −7.4% | +35.4% | −15.2% | +40.7% | +16.6% | +18.1% | −10.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| DFAS Dimensional - US Small Cap ETF | 2 of 4 | +8.2% | +10.2% | +17.8% | −13.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| IWC iShares Micro-Cap ETF | 7 of 20 | +22.4% | +13.6% | +9.0% | −21.9% | +18.7% | +20.9% | +22.2% | −13.1% | +12.8% | +20.6% | −5.0% | +3.6% | +45.2% | +19.5% | −9.8% | +29.6% | +23.7% | −39.0% | −9.0% | +14.9% | — | — | — | — | — |
| VTWO Vanguard Russell 2000 ETF | 0 of 15 | +12.9% | +11.6% | +17.1% | −20.5% | +14.8% | +20.2% | +25.8% | −11.1% | +14.7% | +21.4% | −4.5% | +5.0% | +38.8% | +16.2% | −4.4% | — | — | — | — | — | — | — | — | — | — |
| SMDV ProShares S&P SmallCap 600 Dividend Aristocrats ETF | 4 of 10 | +0.3% | +7.0% | +9.0% | −5.9% | +19.0% | −4.8% | +17.2% | −0.5% | +4.6% | +35.6% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| OMFS Invesco Russell 2000 Dynamic Multifactor ETF | 5 of 8 | +13.4% | +3.9% | +15.1% | −17.3% | +28.6% | +15.0% | +27.1% | −9.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| SCZ iShares MSCI EAFE Small-Cap ETF | 5 of 18 | +32.1% | +1.5% | +13.0% | −21.3% | +10.1% | +11.7% | +24.7% | −17.6% | +32.7% | +2.6% | +9.1% | −6.0% | +28.6% | +21.3% | −15.1% | +21.5% | +43.0% | −48.5% | — | — | — | — | — | — | — |
| IWO iShares Russell 2000 Growth ETF | 14 of 25 | +12.9% | +15.0% | +18.5% | −26.3% | +2.5% | +34.7% | +28.5% | −9.4% | +22.3% | +11.7% | −1.3% | +5.9% | +43.3% | +14.8% | −3.0% | +29.4% | +34.6% | −38.5% | +6.9% | +13.2% | +4.0% | +13.9% | +49.3% | −30.3% | −10.4% |
Risk and diversification
How IWM has fallen, how it held up in crashes beside the S&P 500 and its popular alternatives, and what moves independently of it.
What were IWM's worst declines?
A drawdown is the decline from a peak to the lowest point before a new high. This section presents IWM's five deepest drawdowns since it began trading in 2000, alongside the S&P 500's return over the same dates, and how long each took to recover. Together, these figures show how much an investor could have lost and how long it took to get back to even.
- In four of IWM's five worst declines, the S&P 500 held up better over the same dates.
- The slowest recovery came after IWM fell 31.9% from November 2021 to June 2022; it did not regain that peak until November 2024, two years later.
Green means IWM fell less than the S&P 500 over the same dates. Based on daily closing prices with dividends reinvested.
| During | IWM fell | S&P 500, same dates | Peak | Low | Time to the low | Back at the peak | Time to recover |
|---|---|---|---|---|---|---|---|
| 2008 financial crisis | −59.1% | −54.0% | Jul 2007 | Mar 2009 | 20 months | Feb 2011 | 23 months |
| Late-2018 sell-off | −41.1% | −20.5% | Aug 2018 | Mar 2020 | 19 months | Nov 2020 | 8 months |
| Dot-com bust | −38.7% | −46.7% | Jul 2000 | Oct 2002 | 2.3 years | Oct 2003 | 12 months |
| 2022 bear market | −31.9% | −21.3% | Nov 2021 | Jun 2022 | 7 months | Nov 2024 | 2.4 years |
| 2011 euro debt crisis | −28.9% | −18.6% | Apr 2011 | Oct 2011 | 6 months | Sep 2012 | 11 months |
How did IWM do in stock market crashes?
This section measures how far IWM, the S&P 500 and each alternative fell from peak to trough during every major market crash since 2000. A smaller decline means an investment held up better, and comparing results across crashes shows whether that resilience was consistent or a one-off.
Note: IWM began trading on May 26, 2000, so its row reads "Not yet trading" for the dot-com bust. The older alternatives and the S&P 500 show how those crashes played out.
- IWM fell further than the S&P 500 in eight of the nine crashes it has traded through. The clearest case was the 2011 euro debt crisis, when IWM fell 27.2% and the S&P 500 fell 17.9%.
- Among its popular alternatives, SMDV held up best, falling less than IWM in all six crashes they both traded through.
Newest crash first. Each figure is the fund's deepest fall within the crash window; green means a smaller fall than IWM.
| Investment | Held up better | 2023 regional bank crisisMar 2023 | 2022 bear marketJan 2022 | Covid crashFeb 2020 | Late-2018 sell-offSep 2018 | February 2018 volatility shockFeb 2018 | 2015 China and oil sell-offAug 2015 | 2011 euro debt crisisJul 2011 | 2010 flash crashMay 2010 | 2008 financial crisisOct 2007 | Dot-com bustMar 2000 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| IWM This pageiShares Russell 2000 ETF | — | −7.1% | −26.8% | −40.8% | −25.7% | −5.5% | −21.5% | −27.2% | −2.9% | −58.4% | Not yet trading |
| SPY S&P 500State Street SPDR S&P 500 ETF | 8 of 9 | −3.4% | −24.5% | −33.7% | −19.3% | −6.5% | −12.8% | −17.9% | −1.5% | −55.2% | −47.5% |
| FYX First Trust Small Cap Core AlphaDEX Fund | 4 of 9 | −7.9% | −25.9% | −44.8% | −26.2% | −4.9% | −19.9% | −25.8% | −2.9% | −60.5% | — |
| SMLF iShares U.S. Small-Cap Equity Factor ETF | 3 of 6 | −7.5% | −23.3% | −40.9% | −23.2% | −5.4% | −16.1% | — | — | — | — |
| FNDA Schwab Fundamental U.S. Small Company Index ETF | 3 of 6 | −7.1% | −24.1% | −44.0% | −23.7% | −5.5% | −18.5% | — | — | — | — |
| SCHA Schwab U.S. Small-Cap ETF | 0 of 8 | −7.3% | −26.6% | −42.3% | −25.3% | −5.6% | −21.5% | −27.0% | −2.7% | — | — |
| IJR iShares Core S&P Small-Cap ETF | 3 of 9 | −7.0% | −24.7% | −41.5% | −25.8% | −5.4% | −17.1% | −25.2% | −2.6% | −58.0% | — |
| VB Vanguard Morningstar Small-Cap ETF | 3 of 9 | −7.3% | −24.9% | −42.0% | −23.8% | −5.9% | −20.5% | −26.7% | −2.5% | −59.7% | — |
| IJH iShares Core S&P Mid-Cap ETF | 5 of 9 | −7.0% | −22.8% | −42.2% | −22.8% | −6.1% | −17.5% | −24.6% | −2.6% | −54.8% | — |
| IWN iShares Russell 2000 Value ETF | 4 of 9 | −7.8% | −22.7% | −43.4% | −24.0% | −5.3% | −17.9% | −26.5% | −2.8% | −59.5% | — |
| AVSC Avantis U.S. Small Cap Equity ETF | 0 of 1 | −7.9% | — | — | — | — | — | — | — | — | — |
| CALF Pacer US Small Cap Cash Cows ETF | 2 of 5 | −6.0% | −26.6% | −41.3% | −25.7% | −3.6% | — | — | — | — | — |
| DFAS Dimensional - US Small Cap ETF | 1 of 2 | −7.2% | −23.2% | — | — | — | — | — | — | — | — |
| IWC iShares Micro-Cap ETF | 1 of 9 | −8.4% | −27.8% | −42.9% | −27.1% | −4.5% | −22.6% | −28.5% | −3.4% | −63.8% | — |
| VTWO Vanguard Russell 2000 ETF | 0 of 7 | −7.2% | −26.8% | −40.9% | −25.4% | −5.5% | −21.6% | −27.3% | — | — | — |
| SMDV ProShares S&P SmallCap 600 Dividend Aristocrats ETF | 6 of 6 | −5.9% | −16.7% | −33.3% | −13.5% | −4.8% | −8.8% | — | — | — | — |
| OMFS Invesco Russell 2000 Dynamic Multifactor ETF | 3 of 5 | −6.6% | −24.6% | −39.7% | −22.9% | −5.8% | — | — | — | — | — |
| SCZ iShares MSCI EAFE Small-Cap ETF | 6 of 8 | −2.9% | −33.6% | −37.3% | −20.5% | −6.1% | −15.3% | −22.3% | −2.0% | — | — |
| IWO iShares Russell 2000 Growth ETF | 3 of 9 | −6.5% | −33.8% | −39.8% | −27.6% | −5.6% | −25.5% | −27.7% | −2.9% | −57.6% | — |
How closely does IWM move with the S&P 500?
Upside capture measures how much of the S&P 500's gains an investment kept in the months the market rose, and downside capture how much of its losses it took in the months the market fell. An investment that captures more of the gains than the losses has compounded ahead of the market over time. This section compares IWM with its popular alternatives on both measures, and on beta (how strongly each has moved with the market), over the past 10 years.
- Nine of the 13 popular alternatives had a higher capture ratio (upside capture divided by downside capture) than IWM's 0.76, led by SMLF, FYX and IJH.
- SCZ took just 107% of the S&P 500's losses, against 129% for IWM, while still keeping 81% of its gains.
- Over the past 10 years, IWM captured 98% of the S&P 500's gains in rising months and 129% of its losses in falling months, with a beta of 1.17. Its share of the market's losses was larger than its share of the gains.
Monthly total returns over the past 10 years, measured against SPY. 100% capture or a beta of 1.00 means moving in line with the S&P 500. Green marks a better figure than IWM's: more upside, less downside or a higher capture ratio. Sorted by capture ratio.
| Investment | Upside capture | Downside capture | Capture ratio | Beta |
|---|---|---|---|---|
| IWM This pageiShares Russell 2000 ETF | 98% | 129% | 0.76 | 1.17 |
| SMLF iShares U.S. Small-Cap Equity Factor ETF | 98% | 118% | 0.83 | 1.11 |
| FYX First Trust Small Cap Core AlphaDEX Fund | 104% | 128% | 0.81 | 1.23 |
| IJH iShares Core S&P Mid-Cap ETF | 93% | 115% | 0.81 | 1.10 |
| VB Vanguard Morningstar Small-Cap ETF | 96% | 120% | 0.80 | 1.13 |
| FNDA Schwab Fundamental U.S. Small Company Index ETF | 97% | 123% | 0.79 | 1.16 |
| SCHA Schwab U.S. Small-Cap ETF | 97% | 124% | 0.78 | 1.18 |
| IWC iShares Micro-Cap ETF | 97% | 124% | 0.78 | 1.17 |
| IJR iShares Core S&P Small-Cap ETF | 95% | 123% | 0.77 | 1.13 |
| VTWO Vanguard Russell 2000 ETF | 98% | 128% | 0.77 | 1.17 |
| IWO iShares Russell 2000 Growth ETF | 100% | 132% | 0.76 | 1.21 |
| IWN iShares Russell 2000 Value ETF | 95% | 126% | 0.75 | 1.14 |
| SMDV ProShares S&P SmallCap 600 Dividend Aristocrats ETF | 67% | 89% | 0.75 | 0.78 |
| SCZ iShares MSCI EAFE Small-Cap ETF | 81% | 107% | 0.75 | 0.91 |
What diversifies IWM?
Correlation measures how closely two investments move together, on a scale from 1 (in lockstep) through 0 (unrelated) to -1 (in opposite directions). This section lists large ETFs and stocks whose returns have had a low correlation with IWM's. Because such investments tend not to fall at the same time, pairing IWM with them can reduce a portfolio's overall swings.
- Moving a fifth of the money in IWM into DBMF would have cut the portfolio's volatility by 21% over the past 5 years and raised its annual return (+6.2% for IWM alone, +7.5% for the mix).
- Among large ETFs, DXJ, GLD and XLE have moved largely independently of IWM over the past 5 years, with correlations of 0.41 or lower, and each still earned a positive 5-year return.
- Among large stocks, CAH, CLS and MCK have moved largely independently of IWM over the past 5 years, with correlations of 0.47 or lower, and each still earned a positive 5-year return.
Only ETFs with at least $1.0B in assets and stocks worth at least $10B, with a correlation below 0.5 over the past 5 years and a positive return, are included, ranked by Sharpe ratio; funds that hold the same thing are shown once. The year columns are the years in which IWM lost money. The last two columns show a portfolio that is 80% IWM and 20% the other investment, rebalanced monthly.
ETFs
| Investment | Correlation | 5Y return | Sharpe | 2022 | 2018 | 2015 | 2011 | 2008 | 2007 | 2002 | 80/20 mix volatility | 80/20 mix annual return |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IWM iShares Russell 2000 ETF (this page) | 1.00 | +29.0% | 0.34 | −20.5% | −11.1% | −4.5% | −4.4% | −34.2% | −1.8% | −20.3% | 20.9% | +6.2% |
| DXJ InternationalWisdomTree Japan Hedged Equity Fund | 0.41 | +225% | 1.34 | +6.0% | −19.8% | +7.7% | −16.1% | −20.8% | −7.4% | — | 17.9% | +10.4% |
| GLD CommoditiesSPDR Gold Shares | 0.12 | +126% | 0.96 | −0.8% | −1.9% | −10.7% | +9.6% | +4.9% | +30.4% | — | 17.5% | +9.1% |
| XLE EnergyState Street Energy Select Sector SPDR ETF | 0.33 | +177% | 0.93 | +64.4% | −18.2% | −21.5% | +2.8% | −39.0% | +36.8% | −14.8% | 19.1% | +10.0% |
| AMLP EnergyAlerian MLP ETF | 0.47 | +111% | 0.89 | +25.5% | −12.6% | −25.7% | +10.2% | — | — | — | 18.8% | +8.9% |
| EDIV InternationalState Street SPDR S&P Emerging Markets Dividend ETF | 0.45 | +69.9% | 0.84 | −15.3% | −6.2% | −27.4% | — | — | — | — | 18.1% | +7.5% |
| DBMF AlternativesiMGP DBi Managed Futures Strategy ETF | -0.18 | +59.7% | 0.82 | +21.6% | — | — | — | — | — | — | 16.5% | +7.5% |
| DBA AlternativesInvesco DB Agriculture Fund | 0.15 | +66.4% | 0.81 | +2.5% | −8.7% | −17.2% | −10.7% | −19.1% | — | — | 17.2% | +7.5% |
| IHE Broad MarketiShares U.S. Pharmaceuticals ETF | 0.49 | +81.2% | 0.80 | −4.9% | −7.8% | +8.8% | +20.9% | −14.8% | +2.4% | — | 18.4% | +7.7% |
Stocks
| Investment | Correlation | 5Y return | Sharpe | 2022 | 2018 | 2015 | 2011 | 2008 | 2007 | 2002 | 80/20 mix volatility | 80/20 mix annual return |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IWM iShares Russell 2000 ETF (this page) | 1.00 | +29.0% | 0.34 | −20.5% | −11.1% | −4.5% | −4.4% | −34.2% | −1.8% | −20.3% | 20.9% | +6.2% |
| CAH Medical - DistributionCardinal Health, Inc. | 0.31 | +479% | 1.55 | +54.1% | −24.5% | +12.6% | +8.1% | −39.6% | −9.8% | −8.3% | 19.0% | +12.6% |
| CLS Hardware, Equipment & PartsCelestica Inc. | 0.47 | +3,143% | 1.47 | +1.3% | −16.3% | −6.0% | −24.4% | −20.5% | −25.7% | −65.1% | 24.5% | +24.3% |
| MCK Medical - DistributionMcKesson Corporation | 0.21 | +413% | 1.44 | +51.8% | −28.4% | −4.5% | +11.8% | −40.4% | +29.7% | −27.2% | 18.5% | +12.1% |
| MPC Oil & Gas Refining & MarketingMarathon Petroleum Corporation | 0.26 | +690% | 1.41 | +86.6% | −8.2% | +17.4% | — | — | — | — | 19.4% | +14.6% |
| ATI Manufacturing - Metal FabricationATI Inc. | 0.48 | +1,008% | 1.34 | +87.5% | −9.8% | −66.7% | −12.2% | −70.0% | −4.2% | −60.8% | 22.9% | +17.2% |
Common questions
What was IWM's worst drawdown?
IWM's deepest decline since it began trading in 2000 was 59.1%, from July 2007 to March 2009. It took 23 months from the low to climb back to its old high.
What were IWM's best and worst years?
Over 25 full calendar years, IWM's best year was 2003, when it returned 47.4%. Its worst was 2008, with a return of -34.1%.
Is there a better investment than IWM?
Among IWM's popular alternatives, SPY, SMLF and IJH earned more than IWM with less volatility over the past 5 years. SPY returned 12.7% a year at 17.1% volatility, against 5.2% a year at 22.4%. A cheaper fund that has kept up over the past decade is SCHA (0.03% a year against 0.19%).
Is IWM more volatile than the S&P 500?
Yes. IWM's volatility over the past 5 years was 22.4%, 1.3 times the S&P 500's 17.1%. Volatility measures how widely returns swing around their average: in roughly two years out of three, IWM's return lands within 22.4% of its average, either way. The higher it is, the rougher the ride and the harder it is to hold through a slump.
What is IWM's Sharpe ratio?
IWM's Sharpe ratio over the past 5 years was 0.34, against 0.79 for the S&P 500, so IWM earned less for each unit of risk than an index fund did. The Sharpe ratio is the return earned above cash for each unit of volatility: two investments with the same return are not equal if one got there with far bigger swings.
How correlated is IWM with the S&P 500?
Over the past 5 years, IWM's monthly returns had a correlation of 0.84 with the S&P 500. Correlation runs from 1 (moving in lockstep) through 0 (unrelated) to −1 (moving in opposite directions). They move almost in lockstep, so holding both adds little diversification. In the table, the correlation column measures each option against IWM instead: the lower it is, the more that option would diversify a IWM holding.
What are the best alternatives to IWM?
Of the 19 popular alternatives we compared, nine outperformed IWM in at least 3 of 5 short-term and 2 of 3 long-term timeframes, with dividends reinvested: SPY, FYX and SMLF.
Did IWM outperform the S&P 500?
IWM finished ahead of the S&P 500 (SPY) in 12 of 25 full calendar years. In 2025, it returned +12.7%, against +17.7% for the index.
How did IWM do in stock market crashes?
IWM fell less than the S&P 500 (SPY) in one of the nine major crashes it has traded through, and further in eight. The clearest case was the 2011 euro debt crisis, when IWM fell 27.2% and the S&P 500 fell 17.9%.
What diversifies IWM?
These had a low correlation with IWM over the past 5 years and still earned a positive 5-year return: among large ETFs, DXJ (correlation 0.41), GLD (correlation 0.12) and XLE (correlation 0.33); among large stocks, CAH (correlation 0.31), CLS (correlation 0.47) and MCK (correlation 0.21). A correlation near zero means the two have moved largely independently.
How we measure
- Short-term periods are 1M, 3M, 6M, YTD, 1Y; long-term periods are 3Y, 5Y, 10Y. An investment outperformed in a period when its total return, with dividends reinvested, was higher than IWM's. Returns within 0.5 points or 3% of IWM's, whichever is larger, count as a tie.
- "Qualified" means outperforming in at least 3 of 5 short-term periods and 2 of 3 long-term periods. "All-weather" means outperforming in every long-term period and all but one short-term period.
- Popular alternatives are the funds and stocks most often compared with this one. We include only those that trade today, are not leveraged or inverse, and hold at least $200 million.
- Volatility is the annualized standard deviation of daily returns over 5 years, a measure of how much the price typically swings in a year. The Sharpe ratio is the return above cash for each unit of that volatility.
- A decline, or drawdown, runs from a peak to the lowest close before the next high. The worst decline ever uses all the price history we have; comparisons between funds use the past 10 years so that younger funds are judged on the same stretch.
- Sector overlap is the share of assets two funds hold in the same sectors. Correlation and the mixed-portfolio figures use monthly returns.
- Upside and downside capture follow Morningstar's definition: the compound monthly return in the months the S&P 500 rose (or fell), divided by the S&P 500's compound return in those months. Beta measures how strongly monthly returns have moved with the S&P 500. All three use the same window for every investment.
- Figures are computed from daily adjusted prices and update after each trading day. Past performance does not predict future results.
More research
Popular alternatives to IWM
SPYState Street SPDR S&P 500 ETF
IJRiShares Core S&P Small-Cap ETF
VBVanguard Morningstar Small-Cap ETF
IJHiShares Core S&P Mid-Cap ETF