Invest like
the pros.
Three tracks — Investing Fundamentals, Options Pricing, and Quant Investing — taught through a real Python notebook in your browser. From your first stock to the efficient frontier. Free. No installs.
Three tracks.
Start anywhere.
21 lessons across three tracks — from buying your first stock to backtesting systematic strategies. Each lesson ends with a real Python exercise that runs in your browser.
Five numbers that
run the trade.
Every option price depends on five things: the underlying, strike, time, volatility, and rates. The Greeks measure how the price reacts to each one.
Delta is your directional exposure. Gamma is how fast that changes. Theta is the daily cost of waiting. Vega is your bet on volatility. Rho is the rate effect.
Learn to read all five and an options chain stops looking like noise — and starts looking like a map.
Start with Delta →Don't just read it. Run it.
The curriculum doesn't ask you to trust the formula. It asks you to derive it, code it, and watch what happens when the inputs move.
A real Python notebook
Full Python 3.11 runs in your browser through Pyodide — NumPy, SciPy, and our pricer preloaded. Every lesson has exercises with tests that run as you type.
A live Greek visualizer
Drag a slider and watch Δ, Γ, Θ, ν, ρ redraw across the strike curve in real time. Open the Playground →
An open-source engine
The pricing engine is MIT-licensed. Read it, fork it, extend it — it's yours. GitHub ↗
∂Education / ∂Zip Code = 0
Start tonight.
It's free.
21 lessons across three tracks — investing fundamentals, options pricing, and quant strategies — with real Python exercises running in your browser. Free and open-source, forever.