About the author

StrategyGyan is written and maintained by Bulan Sarkar, a markets educator who built this library to fix a specific problem: strategy explanations that describe the payoff shape and stop there. A payoff diagram tells you what happens at expiry. It says nothing about what happens on day three when implied volatility collapses, or on expiry morning when gamma turns a 40-point move into a full-width loss. Those are the parts this site insists on covering.

Editorial approach

Each strategy is drafted from established derivatives theory, checked against primary sources where they exist, and then verified against the site's own pricing engine — if the prose claims a maximum loss, the engine computes it independently from the legs, and the two must agree. Rules of thumb are labelled as rules of thumb. Where practitioners disagree, we say so rather than pick a side.

On the absence of recommendations

There are no trade calls here, and there never will be. Not because of a legal technicality, but because a recommendation requires knowing your capital, your other positions, your tax situation and your tolerance for a bad month — none of which a web page can know. What a web page can do is make sure that when you decide, you decide with the mechanics in front of you.

Corrections

If a formula, a figure or an explanation is wrong, tell me and it gets fixed. Use the contact page. Material corrections are logged on the update history. Read the Editorial Policy and Methodology for the standards this site holds itself to.

Last updated 9 July 2026.