BANKNIFTY Open Interest

Call and put open interest by strike, the change since the last session, support and resistance - 23 Nov 2026 expiry.

Future 55,284.80Lot size 30104 strikes

Total call OI19.7 L+2.7 L today

Total put OI6.7 L+1.1 L today

PCR (OI)0.34all strikes, this expiry

Resistance · call OI above58,0006.8 L calls open

Support · put OI below54,00059.7 K puts open

The biggest call OI above the price sits at 58,000 (6.8 L) and the biggest put OI below it at 54,000 (59.7 K): the market's resistance and support for this expiry. PCR is 0.34. Since the last session, call writers added most at 57,000 (+5.8 L) and put writers at 55,000 (+18.3 K).

Data as of 30 Sep 2026, 16:45 IST · change vs 29 Sep 2026, 16:45 IST · ATM ±15 strikes and the highest-OI strikes

Open interest by strike

Calls and puts at each strike · change since 29-Sep-26 16:45. R = biggest call OI above the price (resistance), S = biggest put OI below it (support).

58,000R6.8 L1.0 L−4.9 L+810

57,50055.0 K3.8 K+16.2 K−30

57,0006.7 L1.2 L+5.8 L+10.1 K

56,8005.8 K240+2.7 K+180

56,7005.5 K930+2.8 K0

56,6003.7 K240+2.0 K+210

56,50030.3 K24.7 K+9.1 K+3.5 K

56,4002.8 K1.4 K+1.7 K+270

56,3003.0 K300+1.6 K+270

56,2004.3 K2.3 K+1.9 K+2.0 K

56,1003.4 K750+2.7 K+630

56,0001.0 L64.8 K+43.8 K+5.2 K

55,9002.9 K2.0 K+2.4 K+1.7 K

55,8001.6 K1.2 K+1.1 K+900

55,700930750+630+450

55,600720690+510+600

55,50016.6 K9.0 K+2.3 K+2.8 K

55,4001.6 K2.4 K+420+1.1 K

55,3001.8 K870+270+720

55,2002.3 K1.9 K+300+60

55,1003.4 K1.2 K+1.3 K+840

55,00031.0 K49.2 K+16.7 K+18.3 K

54,900270660+90+450

54,8005101.0 K+270+870

54,7001.3 K990+720+690

54,600990930+780+840

54,50013.9 K33.3 K+4.3 K+3.2 K

54,40054090+1200

54,3003.4 K210+2.5 K+30

54,200604500+150

54,1003604200+240

54,000S15.6 K59.7 K+2.5 K+11.2 K

53,9001205700+390

53,800601500+60

Call OICall addedCall unwoundPut OIPut addedPut unwoundR resistanceS support

Open interest table

OI in shares · change since the last session · premium (LTP) in ₹

Call LTP	Call OI	Call chg	Strike	Put chg	Put OI	Put LTP
225.50	6.8 L	−4.9 L	58,000	+810	1.0 L	2,949.60
310.60	55.0 K	+16.2 K	57,500	−30	3.8 K	2,546.80
420.05	6.7 L	+5.8 L	57,000	+10.1 K	1.2 L	2,135.80
474.90	5.8 K	+2.7 K	56,800	+180	240	1,970.00
508.95	5.5 K	+2.8 K	56,700	0	930	1,832.90
539.35	3.7 K	+2.0 K	56,600	+210	240	1,840.35
574.80	30.3 K	+9.1 K	56,500	+3.5 K	24.7 K	1,799.20
610.05	2.8 K	+1.7 K	56,400	+270	1.4 K	1,543.90
645.75	3.0 K	+1.6 K	56,300	+270	300	1,439.05
684.50	4.3 K	+1.9 K	56,200	+2.0 K	2.3 K	1,396.00
735.30	3.4 K	+2.7 K	56,100	+630	750	1,525.85
768.80	1.0 L	+43.8 K	56,000	+5.2 K	64.8 K	1,524.75
826.20	2.9 K	+2.4 K	55,900	+1.7 K	2.0 K	1,461.95
872.00	1.6 K	+1.1 K	55,800	+900	1.2 K	1,416.80
919.85	930	+630	55,700	+450	750	1,198.00
969.70	720	+510	55,600	+600	690	1,317.05
1,017.10	16.6 K	+2.3 K	55,500	+2.8 K	9.0 K	1,278.35
1,065.10	1.6 K	+420	55,400	+1.1 K	2.4 K	1,227.00
1,127.60	1.8 K	+270	55,300	+720	870	1,182.75
Future 55,284.80
1,181.60	2.3 K	+300	55,200	+60	1.9 K	1,130.10
1,269.00	3.4 K	+1.3 K	55,100	+840	1.2 K	1,078.85
1,290.55	31.0 K	+16.7 K	55,000	+18.3 K	49.2 K	1,053.90
1,387.45	270	+90	54,900	+450	660	1,002.75
1,424.05	510	+270	54,800	+870	1.0 K	982.25
1,468.50	1.3 K	+720	54,700	+690	990	928.20
1,537.45	990	+780	54,600	+840	930	905.65
1,595.65	13.9 K	+4.3 K	54,500	+3.2 K	33.3 K	864.20
1,807.65	540	+120	54,400	0	90	949.65
1,947.90	3.4 K	+2.5 K	54,300	+30	210	809.65
1,700.00	60	0	54,200	+150	450	623.40
1,784.25	360	0	54,100	+240	420	728.45
1,923.20	15.6 K	+2.5 K	54,000	+11.2 K	59.7 K	699.00
1,629.60	120	0	53,900	+390	570	609.90
1,705.75	60	0	53,800	+60	150	611.55

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What is open interest?

Open interest is the number of option contracts that are open at a strike - written and not yet closed or expired. Unlike volume, it only rises when a new position is opened and only falls when one is closed.

How traders read it

Option writers are usually the larger, better-hedged side, so the strikes where they hold the most open interest tend to act as levels: a big call OI wall above the price as resistance, a big put OI wall below it as support. Fresh additions at a strike strengthen that level; unwinding weakens it. Read it with price, the put-call ratio and max pain.

Frequently asked questions

Where is the highest open interest in BANKNIFTY today?

For the 23 Nov 2026 expiry, the biggest call OI above the price is at the 58,000 strike (6.8 L shares) and the biggest put OI below it at 54,000 (59.7 K), as of 30 Sep 2026, 16:45 IST. Traders read the call wall as resistance and the put wall as support.

What is the put-call ratio (OI) of BANKNIFTY?

Total put OI divided by total call OI across all 104 strikes of the 23 Nov 2026 expiry is 0.34. Above 1 means more puts are open than calls.

What is open interest?

Open interest is the number of option contracts (in shares) that are open - bought and not yet closed or expired - at a strike. It rises when new positions are opened and falls when they are closed.

What does change in open interest tell you?

An addition means fresh positions were written at that strike since the last session; unwinding means positions were closed. Heavy call writing above the price reads as resistance, heavy put writing below as support.

How often is this open interest data updated?

Every few minutes during market hours, compared with the previous session’s close. The time of the reading is shown under the summary.

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Data is for information only and is not investment advice. Derivatives trading carries substantial risk. Disclaimer