Stock Portfolio Backtester With Drawdowns, Returns, and Risk Stats
Indexes turns a backtest into readable stats: total return, annualized return, worst drawdown, and volatility for the index you built. See that an AI-infrastructure basket carried a deeper drawdown than the S&P 500 even when its hypothetical return was higher.
Educational only · Never places a trade
In short
A stock portfolio backtester is a tool that replays a basket of holdings through historical prices and reports the numbers that describe how it behaved, not just the ending value. Indexes is a portfolio backtester and portfolio analysis tool that computes hypothetical total and annualized return, maximum drawdown, and volatility for the custom index you built from stocks or crypto. Alongside those figures it shows the same measures for a benchmark like the S&P 500, so you can study whether an AI-infrastructure basket earned a higher hypothetical return by taking on a deeper drawdown along the way. Reading return next to risk is the point, because a headline number tells you little without the path it took. These are hypothetical historical performance measures, and past performance does not guarantee future results. Indexes is an informational and educational tool only, it does not constitute investment advice, and it never places a trade, connects to a brokerage, or holds any money. The stats are here to help you understand risk and return, not to recommend an action.
What you get
Backtester, built for investors and analysts
Return and risk together
See hypothetical total and annualized return next to maximum drawdown and volatility, so a higher number never hides the bumpy path it took to get there.
Drawdown you can feel
The worst peak-to-trough decline is stated plainly, so you understand how far an AI-infrastructure basket fell before it recovered in the backtest.
Benchmark side by side
Every stat sits next to the same measure for the S&P 500 or BTC, so your index is always read in context rather than in isolation.
Clear, honest numbers
Figures are labeled hypothetical historical performance, and past performance does not guarantee future results, so the backtester informs your study.
How it works
From holdings to a tracked index in four steps
Assemble the index
Build the stock or crypto basket you want to analyze and set the weights you want the backtester to measure.
Run the backtest
Indexes replays your index through historical prices and computes return, drawdown, and volatility for the period.
Read the risk stats
Compare hypothetical return against maximum drawdown and volatility, and against a benchmark like the S&P 500, side by side.
Study, do not act
Use the numbers to understand the strategy. They are educational only, and Indexes never places a trade or connects to a brokerage.
More features
Build your index and see how it backtests
Bundle stocks or crypto into your own weighted index, backtest it against real market history, and track it against the S&P 500 or BTC. No brokerage account and no spreadsheets. Indexes is educational and informational only, and it never places a trade.