Define a strategy and run it back through decades of point-in-time market history to see how it actually would have held up — graded on performance and confidence, with drawdown reported next to return. Demo backtests run right on this page; sign in to save your own.
Well Street runs portfolio-level backtests: multiple assets, simulated rebalancing, and honest metrics like Sharpe ratio and maximum drawdown. Point-in-time data keeps look-ahead and survivorship bias out of the results. Read how the backtester works, our backtesting philosophy, or start with the backtesting concepts guide. Past performance does not guarantee future results.