Free Stock Tools

Four free, in-browser calculators built on the same math GemStox runs on 7,000+ stocks. No sign-up, no data leaves your browser.

Stock Score CalculatorA Gem-style 0–100 value / quality / growth score from a few inputs.DCF Valuation CalculatorTwo-stage intrinsic value, per-share fair value, and margin of safety.Valuation CalculatorP/E, P/B, P/S, EV/EBITDA, FCF yield, and the Graham number.Risk/Reward CalculatorR:R ratio, position size, max risk, expected value, and Kelly.

Prefer the answers computed live?

The free tools show the math. The $3 Day Pass shows the live signal — probability score, optimal size, and stop/target across all 14 theses.

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All tools are educational and run client-side. Not investment advice.