Open Interest Today
Call and put open interest by strike for every NSE F&O index and stock, with the change since the last session and the support and resistance it points to.
Indices
F&O stocks 210
What is open interest?
Open interest is the number of option contracts open at a strike - written and not yet closed or expired. Where option writers hold the most, the market tends to find its levels: the biggest call OI above the price as resistance, the biggest put OI below it as support.
Frequently asked questions
What is open interest in options?
Open interest is the number of option contracts open at a strike - written and not yet closed or expired. It rises when new positions are opened and falls when they are closed, unlike volume, which counts every trade.
How do traders find support and resistance from open interest?
The strike with the highest call open interest above the price is read as resistance, and the one with the highest put open interest below it as support, because option writers defend the strikes they have sold.
Which symbols have open interest data on Quantsapp?
All 6 NSE F&O indices and 210 F&O stocks, for every open expiry.
What is the difference between OI and change in OI?
OI is the total open at a strike right now; change in OI is how much was added or unwound since the previous session, which shows where fresh positions are being built today.
Data is for information only and is not investment advice. Derivatives trading carries substantial risk. Disclaimer