Redstone

Overview Redstone is a browser-based portfolio analytics workspace built for self-directed investors, students and quantitative analysts. Users assemble allocations from a tracked universe of 3,400+ stocks and ETFs, then score them against institutional-style risk statistics — Sharpe, Sortino, Omega, Calmar, Martin, alpha and beta — alongside return, drawdown and dividend-yield tables. Core capabilities Screener: filters the universe by return, volatility, drawdown and yield, giving every ticker a percentile rank out of 100 against peers. Comparison views: two tickers or portfolios side by side; prebuilt ETF pairs such as VTI vs VOO and SPY vs QQQ are open without an account. Portfolio builder: allocation charts, watchlists and auto-generated written summaries that place performance against other Redstone portfolios. Data cadence: five-plus years of history, refreshed daily. Pricing Starter is free and covers five portfolios, ten assets each and three optimizations per day. Plus runs $15/month for 25 portfolios, private visibility and 50 daily optimizations; Pro at $50/month removes portfolio, asset and optimization limits and adds priority support. All tiers include the full metric set and screener access. Considerations The product is analytics-only — it does not execute trades or link brokerage accounts, so holdings are entered manually. Coverage centers on US-listed equities and ETFs; the site states no options, futures or non-US exchange support.