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The Wikipedia of Options Trading

A structured, cross-linked knowledge base, a full strategy library, and interactive tools — built to make options trading genuinely learnable.

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Strategies: 0
Courses: 0
Learners: 2

Top calculators

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Black-Scholes Calculator

Theoretical option price and full Greeks using the Black-Scholes model.

Payoff Calculator

Payoff-at-expiry for a single option leg (see the Strategy Library for multi-leg...

Greeks Calculator

Delta, Gamma, Theta, Vega, and Rho for any option.

Position Size Calculator

How many units to trade while risking a fixed percentage of your capital.

Frequently asked questions

Yes — the wiki, strategy library, and core calculators are free. Pro/Elite plans unlock advanced tools like unlimited trade journaling, backtesting, and AI credits.

No. OptionWiki is an educational resource. Nothing here is a recommendation to buy or sell any security.

No — the wiki is structured so you can start from absolute basics and work up to advanced multi-leg strategies.