StrikeHistory
One strike's call and put, day by day, from the contract's first session to expiry — premium, open interest and what each day's combination meant.
What this page shows
Pick a strike and see, day by day, what its call and put did from the day the contract was listed until it expires: the premium's open, high, low and close, how much open interest built up or unwound, and what that combination usually means — long build-up, short covering and so on. The chart draws the premium over the open interest so the shape of a position is visible at a glance. It works for NIFTY, BANK NIFTY, SENSEX and every F&O stock, at any listed expiry — and at expired ones from at least the last six months, so a finished contract can be read from listing to its last session.
How to read it
- Lines and bars — the lines are the closing premium of the call (green) and the put (red); the bars behind them are their open interest. Premium sliding while the bars grow means writers are pressing; premium rising with the bars means buyers are.
- OI Interpretation — each session gets one of four labels from the direction of premium and open interest that day: Long Build Up, Short Build Up, Short Covering or Long Unwinding. A day where either did not change carries no label.
- Since listing — the ledger starts on the contract's first traded session, so a wall in the option chain can be traced back to the days it was built. The listing day has no change columns — there is nothing before it to compare with.
- Today's row — during market hours the newest row is provisional and refreshes every minute; it becomes final after the session's daily candle prints.
- Lots or quantity — open interest is shown in raw quantity by default; switch to lots with the toggle above the tables. The raw quantity always stays on hover.
Frequently asked questions
The day-by-day record of one option strike: the call and the put contract's opening, high, low and closing premium, their open interest at each close, and how both changed from the previous session — from the day the contract was listed to the day it expires.
To the contract's first traded session. Weekly index contracts are usually listed a few weeks before expiry and monthly contracts about three months before, so the ledger is as long as the contract's life. Contracts that have already expired stay available for at least six months under Expired in the expiry picker, so a finished contract can be read from listing to its last session.
They describe what a day's move in premium and open interest usually means together. Premium up with open interest up is Long Build Up (buyers adding). Premium down with open interest up is Short Build Up (writers adding). Premium up with open interest down is Short Covering (writers closing). Premium down with open interest down is Long Unwinding (buyers closing).
The option chain shows every strike at one moment. Strike History shows one strike across every session of its life. Use the chain to find the strikes that matter and this page to see how they got there — clicking a strike in the chain opens a quick look and links here.
Yes. Switch the picker to Stock and search any name in the NSE F&O list; expiry and strike lists follow the stock's own contracts.