Redstone Markets
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Free return and risk numbers for about 4,100 US stocks and ETFs: Sharpe, drawdown, volatility and correlations, plus portfolio backtests. No account needed to browse.
Wealth and investing · B2C
Markets: United States
Redstone is a portfolio analytics site for self-directed investors. It covers about 2,900 US-listed stocks and 1,200 US ETFs, updated after every US trading day, with up to 5 years of history. Each stock and ETF has a page with 1-year and 5-year returns (dividends reinvested), volatility, max drawdown, Sharpe and Sortino ratios, beta and alpha against SPY, and dividend yield. Screen stocks and ETFs, compare two tickers or portfolios side by side with their correlation, and browse public and model portfolios. Build a portfolio from stock and ETF weights, backtest it with quarterly rebalancing, and optimize it for max Sharpe, max return or min volatility. A free, read-only MCP server lets Claude, ChatGPT and other AI assistants use the same numbers. Browsing is free without an account. Not investment advice.
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