Real-time Put-Call Difference & Open Interest
This page studies the Options market for NIFTY and BANKNIFTY β two of India's main stock indices. In options, traders buy and sell two kinds of contracts:
Calls (CE) β a bet the index will rise.
Puts (PE) β a bet the index will fall.
Every open contract is called Open Interest (OI). By watching how much Call OI vs Put OI exists, and whether it's growing, we can judge where the market thinks resistance (a price ceiling) and support (a price floor) are forming.
NIFTY PCR
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Total Call OI
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Total Put OI
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Total OI
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Open Interest (OI) is the number of contracts currently active (not expired, not squared off).
Call OI β how many Call contracts are open. When Call OI is large and rising, sellers of Calls (writers) expect the index not to rise past a level β so this is where resistance builds.
Put OI β how many Put contracts are open. When Put OI is large and rising, Put writers expect the index not to fall below a level β so this is where support builds.
Total OI β Call OI + Put OI. A sudden jump usually means large players are positioning.
PCR (Put-Call Ratio) = Put OI Γ· Call OI:
NIFTY 50
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loadingATM Strike
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loadingOI Change Bias
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loadingSpot β the current live price of the index. Every strike price is measured relative to it.
ATM (At-The-Money) strike β the option strike closest to the spot price. Most fresh OI builds here.
Range β the band of strikes (e.g. "68-89") around ATM that the dashboard is scanning. OI outside this band rarely signals fresh positioning.
OI Change Bias β today's net change in OI between Calls and Puts:
CE OI (green) β total open Call contracts. Growing Call OI at a strike means Call writers defend that level β resistance.
PE OI (red) β total open Put contracts. Growing Put OI at a strike means Put writers defend that level β support.
Total OI β the two combined. A sudden spike often signals a fresh institutional position or a hedge.
OI Bias bar β the green : red ratio. Green wider = Call writers dominate β bearish lean. Red wider = Put writers dominate β bullish lean.
Verdict pill β the raw difference CE OI β PE OI. Negative = Puts outweigh Calls (bullish); positive = Calls outweigh Puts (bearish).
PCD (Put-Call Difference) = CE OI β PE OI β the raw gap between Call and Put open interest.
PCR (Put-Call Ratio) = PE OI Γ· CE OI β the same idea as a ratio.
Green zones = bullish territory (PCD above 0 / PCR above 1); red zones = bearish territory. The direction panel blends level, trend, and momentum into a single verdict with a confidence score.
Options OI changes every few minutes during market hours. The timestamp tells you the exact moment this snapshot was computed on the exchange/backend.
During trading hours, a snapshot older than a few minutes means you're looking at stale data β the analysis below reflects an earlier market state. Outside trading hours, the timestamp freezes at the last close, which is normal.
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