The first public release of EasyCompare for Mac, a native SwiftUI app.

• Up to 200 stocks and ETFs on one chart, all starting from the same day and measured against a benchmark
• Every period from today's session to forty years, plus one-click replays of past crashes and bull markets
• A ranked table of return, CAGR, volatility, Sharpe ratio and max drawdown
• Related-ticker suggestions, and chart export to an image with ⇧⌘C
• Lists sync with your EasyCompare account on the web

We rebuilt EasyCompare's backend in Go as a single in-memory server, so every comparison is computed fresh, for any set of tickers, in tens of milliseconds.

• About 53 million daily prices for 15,000 stocks, ETFs and mutual funds, held in memory in one process
• Each request is computed when it arrives, with no cached results, even for 200 tickers with every metric
• Dozens of metrics per ticker: returns over 13 standard periods, CAGR, volatility, Sharpe ratio, drawdowns with dates, correlation with the S&P 500, a trend score, and how each ticker fared in every S&P 500 drawdown from -5% to -50%
• About 10 times the throughput of our earlier Python and pandas backend on the same two cores, with median latency down from about 190 ms to 40 ms
• Every metric was checked against the Python results across 84 test cases before the switch
• Live prices are checked every 15 seconds during market hours