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ThetaGrind

The operating system for systematic premium sellers.

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Blog

Field notes on options trading discipline, premium-selling systems, and how we build ThetaGrind.

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Strategy

Why Discipline Predicts Returns Better Than Win Rate

Your process (did I follow my plan?) is a leading indicator of future P/L, while win rate is a lagging one.

Rob Brockman·May 12, 2026