The NSE website displays Volume and Open Interest data in terms of contracts, whereas on Sensibull we represent them in terms of contracts * lot size of the underlying (denominated in lakhs)
Let’s look at this with the help of an example:
Suppose for NIFTY 25000 CE, the volume is 15,000 and the Open Interest is 1,30,000. The values on Sensibull will be:
Volume on Sensibull (in Lakhs) = Volume on NSE * Lot size of underlying
= 15,000 * 25
= 3,75,000.
i.e. 3.75L on Sensibull.
Similarly with Open Interest
Open Interest on Sensibull (in Lakhs) = Open Interest on NSE * Lot size of underlying
= 1,30,000 * 25
= 32,50,000.
i.e. 32.5L on Sensibull.
Note: Sensibull's Option Chain is real-time on broker logins and delayed by 1 minute on Google login. Please note that the NSE option chain refreshes once every 3 minutes. Hence, OI values might not match 1:1 between NSE and Sensibull.