The position limit of a Trading Member in equity index option contracts is higher of Rs.500 crores or 15% of the total Open Interest(OI) in the market in Banknifty option contracts. NSE link declaring the same.
Since Zerodha as a Trading Member is breaching the 15% limit of total OI in Banknifty option contracts, we dynamically limit the strikes in which positions can be taken based on the LTP of Banknifty spot.
Today’s dynamic percentage was 1.3% from the spot. So if Banknifty was at 24,400 at a given point, then you could trade strikes +/- 1.3% from this spot price, that is any strike between 24,700 and 24,100 at that given point.