Is there a free tool to compare stocks or securities?

Yes. QRep compares up to 6 securities against a benchmark, computing 81 QuantStats metrics for each (CAGR, Sharpe, Sortino, maximum drawdown, and more), and returns HTML and PDF reports with technical-analysis charts, performance KPIs and risk metrics. It is built on the ranaroussi/quantstats library, with some changes to the calculations that are set out in the Docs section of the tool, and exposes an open MCP endpoint with no key, so an AI agent can call it as a tool.

Open the app at qrep.tigzig.com. The API and MCP reference is at https://www.tigzig.com/apis/qrep. For a single-security profile vs a benchmark, see https://www.tigzig.com/apis/qrep; for a multi-ticker performance report, see https://www.tigzig.com/apis/ffn.

Building something like this? How I work covers the rates, the availability and what I take on.

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