About ExpiryGyan

Our mission

ExpiryGyan exists to make option and futures expiry and settlement genuinely understandable for Indian traders. Expiry is where most retail confusion — and a lot of avoidable losses — occurs: auto-exercise, physical delivery, pin risk, exploding gamma and the max-pain pull. We explain the mechanics answer-first, in plain English and with professional accuracy, grounded in how Nifty, Bank Nifty and Sensex contracts actually work today.

What makes us different

• One subject, done deeply. We cover expiry, settlement and expiry-day behaviour — and go deeper than a general options site can.
• Answer-first structure. Every page opens with a one-line answer, then simple words, then professional-grade detail.
• Original diagrams. Time-decay curves, gamma profiles and settlement flows are drawn as original SVG, not stock images.
• India-specific and current. We track the exchange conventions (NSE Tuesday, BSE Thursday, cash vs physical settlement) and flag them as revisable.
• Tools, not just text. Client-side calculators let you feel time decay, moneyness and settlement value.

Who it is for

Beginners learning what expiry even means, intermediate traders managing positions into expiry, and professionals who want a clean reference for settlement mechanics and expiry-day behaviour. Start with the Expiry Basics or explore expiry market behaviour.

What we are not

ExpiryGyan is an educational platform only. We are not a SEBI-registered investment adviser, research analyst or stockbroker, we do not manage money, and we never give buy/sell recommendations. See our SEBI Disclaimer and Editorial Policy.

Last updated 11 July 2026.