Nifty Open Interest (OI) Live

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Market data refreshed: 27 Jul, 2026, 04:08 PM IST

Nifty OI peaks at 24,200 Calls and 24,000 Puts. PCR stands at 1.17.

Put OI at 24,000 is the heavier wall — watch for support.

Expiry

Strikes

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Spot Price

Expiry Date

Strikes Limit

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India Vix:
12.66 (-1.37)
Max Pain:
24000
Lot Size:
65
PCR:
1.171
PCR (ALL):
1.1278

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Default (OI)

Combine OI

9:10 AM

What this page shows

The chart and table above map total open interest across Nifty strikes for the selected expiry — every outstanding Call and Put contract, wherever it was opened. This is the market's standing positioning: the levels option writers are committed to defending.

From OI to support and resistance

The strike carrying the highest Put OI is the expiry's working support — writers there lose money if Nifty closes below it, so they defend it with hedging and fresh writing. The highest Call OI is the mirror-image resistance. Between them lies the range the writing community expects Nifty to hold, and the summary above computes both live.

These levels are probabilistic, not walls: when spot approaches a heavy strike, either writers defend (price stalls) or they capitulate and unwind (price accelerates through). Which one is happening shows up first as change in OI, not on this page — total OI is the map, change in OI is the movement on it.

Reading OI structure, not just peaks

Two chains can share the same top strikes and mean different things. A tall, narrow OI peak is a consensus level; a broad plateau across several strikes is a zone. OI stacked far out-of-the-money with little near the money says writers are relaxed; OI crowding at-the-money into expiry says they're fighting for the pin. Glance at the shape of the chart above before the numbers.

Expiry context

OI is per-expiry. Near-series OI dominates intraday behaviour; next-series OI hints where positioning is migrating as expiry approaches. After each expiry the structure resets — never carry yesterday's levels across a settlement. For strike-level detail behind these aggregates, open the full option chain; for the single-number sentiment summary, see PCR.

Related tools: Change in OI · Nifty option chain · Max pain · Participant-wise OI

FAQs

What's the difference between OI and volume?

Volume counts contracts traded today; OI counts contracts still open. High volume with flat OI means positions are changing hands; rising OI means new positions are being created.

Which strike is Nifty's support right now?

The strike with the highest Put OI for the near expiry — computed live in the summary above. Treat it as a defended zone, not a guaranteed floor, and confirm with today's change in OI.

Why does OI update slower than price?

Exchanges disseminate OI in intervals rather than tick by tick. Prices move continuously; the OI on this page refreshes every minute with the latest exchange data.

Does high OI mean bullish or bearish?

Neither by itself. OI measures commitment, not direction. Direction comes from which side is building: rising Put OI below spot is supportive; rising Call OI above spot caps upside.

How do FII and retail positions show up here?

This page aggregates all participants. For the split by participant category — FII, DII, pro, client — see the participant-wise OI page.

Should I use this page or the change-in-OI page intraday?

Both, for different questions. This page: where the battle lines are. Change in OI: which lines are being reinforced or abandoned right now.

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