What is Open Interest (OI) in options?

Open Interest (OI) is the total number of outstanding options contracts that have not been settled or closed. Rising OI indicates new money entering a position; falling OI means positions are being unwound.

How do I read Nifty OI data for trading?

High call OI at a strike acts as resistance; high put OI acts as support. When OI builds at a strike alongside rising price, it signals strong conviction. Sudden OI drops may indicate large players exiting.

What does rising OI with falling price mean?

Rising OI with falling price typically indicates fresh short selling — a bearish signal. Conversely, rising OI with rising price suggests fresh buying — a bullish signal. This is the classic OI-price analysis framework.

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Free BANKNIFTY OI Data — Live Open Interest Analysis

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Real-time visualization of Call and Put Open Interest for NIFTY, BANKNIFTY and SENSEX. Track PCR, Max Pain, and OI positioning live from market open.
View all OI analysis on the OI Data.

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Expiry

Total Call OI

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Total Put OI

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Call OI

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Put OI

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