BANKNIFTY strike OI tracker
Today · 15:40
Call and put open interest minute by minute at up to three strikes.
BANKNIFTY · 5 Nov 2026 · expiry 23 Nov
Shown by default: the at-the-money strike and the strikes with the most call and put open interest. Change in brackets: since the first reading of the day.
From our minute-by-minute option chain recordings (nearest expiry). Information only, not investment advice.
Why watch open interest at one strike?
Rising call OI at a strike above the price usually means traders are selling calls there (expecting resistance); rising put OI below the price, selling puts (expecting support). Falling OI means positions are being closed.
Which strikes are shown first?
The at-the-money strike and the strikes with the most call and put open interest. Pick any others from the lists.