Nifty 50 (NIFTY50) Change in Open Interest (OI)

24,536.60+576.00 (2.40%)

Last updated at

Over the last 5 minutes, Call OI across the 11 strikes near ATM on Nifty 50 (NIFTY50) changed by -4.83L and Put OI by -3.03L for the 9 Nov expiry. The largest Call OI addition is at 24,700 (+1.95L), and the largest Put OI addition is at 24,500 (+1.03L).

Expiry: 09 Nov
  • Call OI Change
  • Put OI Change
Last:
Call OI Change
-4.83L
Put OI Change
-3.03L

Aggregate values for 11 strikes around ATM

FAQs

What is change in open interest?
Change in open interest is how much open interest at a strike has risen or fallen over a period. It equals open interest now minus open interest at the start of the period. A positive change means new positions were opened; a negative change means positions were closed.
How is change in open interest calculated for different time windows?
For a short window, such as the last 15 minutes or the last hour, the change is open interest now minus open interest at the start of that window. For the full day, it is open interest now minus open interest at the previous session's close.
Which time window should I use for change in open interest?
Use 5 to 15 minutes to see what is changing right now, 1 to 3 hours for the session's direction, and Full Day to compare with the previous close.
What are long build-up, short build-up, short covering and long unwinding?
They describe how open interest and a contract's price moved together. Open interest up with price up is a long build-up. Open interest up with price down is a short build-up. Open interest down with price up is short covering. Open interest down with price down is long unwinding.
Why look at change in open interest instead of total open interest?
Total open interest includes positions opened days or weeks ago. Change in open interest isolates what traders did in the period you choose, so it shows where fresh positions are being added or removed right now.
What does it mean when Call and Put open interest both rise at the same strikes?
It means traders are opening new Call and Put positions at the same time, usually writers selling options on both sides. Comparing which strikes gain the most on each side shows where those new positions are concentrated.