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NIFTY Fin Service

NSE: FINNIFTYLot size: 65Weekly Tuesday expiry

NIFTY Fin Service Option Chain

₹24556.10Updated 1 Oct 2026, 03:30 pm IST
2026-10-272026-11-232026-12-29
Total CE OI
1.9 L
Total PE OI
1.4 L
PCR
0.70Bearish
CE OIChgVolIVLTPStrikeLTPIVVolChgPE OI
00——%₹—21,500₹——%—+1K1K
00——%₹—22,000₹——%—+660960
00——%₹—22,100₹——%—00
00——%₹—22,200₹——%—00
00——%₹—22,300₹——%—00
00——%₹—22,400₹——%—00
00——%₹—22,500₹——%—00
00——%₹—22,600₹——%—00
00——%₹—22,700₹——%—00
180+180——%₹—22,800₹——%—00
180+180——%₹—22,900₹——%—00
180+180——%₹—23,000₹——%—00
00——%₹—23,100₹——%—00
00——%₹—23,200₹——%—00
00——%₹—23,300₹——%—00
180+180——%₹—23,400₹——%—00
00——%₹—23,450₹——%—+6060
1200——%₹—23,500₹——%—+1K3K
240+240——%₹—23,550₹——%—00
00——%₹—23,600₹——%—+360360
00——%₹—23,650₹——%—+180180
00——%₹—23,700₹——%—+840840
240+240——%₹—23,750₹——%—+600600
240+240——%₹—23,800₹——%—+780780
1800——%₹—23,850₹——%—+1K1K
180+180——%₹—23,900₹——%—+3K3K
360+360——%₹—23,950₹——%—+2K2K
540+480——%₹—24,000₹——%—+4K7K
240+240——%₹—24,050₹——%—+1K1K
360+360——%₹—24,100₹——%—+9601K
480+480——%₹—24,150₹——%—+1K1K
300+300——%₹—24,200₹——%—+4202K
660+660——%₹—24,250₹——%—+8401K
840+540——%₹—24,300₹——%—+1K5K
1K+1K——%₹—24,350₹——%—+7801K
3K+2K——%₹—24,400₹——%—+24K26K
840+720——%₹—24,450₹——%—+7801K
8K+5K——%₹—24,500₹——%—+17K23K
1K+1K——%₹—24,550ATM₹——%—+3002K
7K+1K——%₹—24,600₹——%—-1K6K
2K+540——%₹—24,650₹——%—+4803K
8K+6K——%₹—24,700₹——%—+2K4K
2K+1K——%₹—24,750₹——%—+7802K
5K+3K——%₹—24,800₹——%—+4203K
2K+900——%₹—24,850₹——%—+6602K
6K+4K——%₹—24,900₹——%—+1K3K
3K+3K——%₹—24,950₹——%—+1K1K
23K+10K——%₹—25,000₹——%—-1K7K
3K+2K——%₹—25,050₹——%—+9601K
22K+14K——%₹—25,100₹——%—+9602K
3K+1K——%₹—25,150₹——%—+4801K
44K+28K——%₹—25,200₹——%—+601K
2K+2K——%₹—25,250₹——%—+660780
2K+1K——%₹—25,300₹——%—+1K1K
2K+1K——%₹—25,350₹——%—+9601K
2K+1K——%₹—25,400₹——%—+480540
3K+3K——%₹—25,450₹——%—+300360
10K+8K——%₹—25,500₹——%—+601K
00——%₹—25,550₹——%—+180360
1200——%₹—25,600₹——%—+601K
00——%₹—25,650₹——%—+60480
00——%₹—25,700₹——%—+120720
00——%₹—25,750₹——%—00
00——%₹—25,800₹——%—+601K
00——%₹—25,850₹——%—00
00——%₹—25,900₹——%—-120240
6K+4K——%₹—26,000₹——%—-1203K
00——%₹—26,100₹——%—+6060
00——%₹—26,200₹——%—+6060
00——%₹—26,300₹——%—00
00——%₹—26,400₹——%—00
00——%₹—26,500₹——%—00
00——%₹—26,600₹——%—00
00——%₹—26,700₹——%—00
00——%₹—26,800₹——%—00
00——%₹—26,900₹——%—00
00——%₹—27,000₹——%—+60360
00——%₹—27,100₹——%—00
00——%₹—27,200₹——%—00
00——%₹—27,300₹——%—00
00——%₹—27,400₹——%—00
00——%₹—27,500₹——%—0120
00——%₹—27,600₹——%—00
00——%₹—27,700₹——%—00
2K+720——%₹—27,800₹——%—00
00——%₹—27,900₹——%—00
00——%₹—28,000₹——%—00
00——%₹—28,100₹——%—00
00——%₹—28,200₹——%—00
00——%₹—28,300₹——%—00
1K-60——%₹—28,400₹——%—00
6000——%₹—28,500₹——%—00
00——%₹—28,600₹——%—00
00——%₹—28,700₹——%—00
00——%₹—28,800₹——%—00
00——%₹—28,900₹——%—00
10K-240——%₹—29,000₹——%—00
1K+540——%₹—29,500₹——%—00
3600——%₹—30,000₹——%—00

Bold CE OI = highest call writing (resistance). Bold PE OI = highest put writing (support). ATM = at-the-money.

AI AnalysisGenerated daily after market close · AI-powered

Key Strike Levels

The 25,200 call strike commands the largest open interest at 43,620 contracts, marking a strong resistance zone near the current index level as market participants intensify positioning today. Conversely, the 24,400 put strike holds 26,160 open interest contracts, forming a notable support tier beneath spot at 24,556, reinforcing the floor for short‑term moves. With ATM implied volatility at 0%, the market‑implied price range is tightly bounded, suggesting limited price dispersion between the identified resistance and support levels, which confines the premium expansion potential.

OI Buildup Activity

During the latest session, fresh open interest added 28,440 contracts at the 25,200 call, indicating aggressive positioning by option writers near resistance and signals risk appetite among sellers. Additional buildup appears at 25,100 (+13,500) and 25,000 (+10,140) calls, reinforcing the short‑call exposure across the upper band, suggesting bullish tilt in upper ladder. On the put side, 24,400 accrued 23,760 new contracts, while 24,500 and 24,000 saw inflows of 16,920 and 4,320 respectively, underscoring defensive accumulation, reflecting cautious stance ahead of expiry.

Volatility Read

Implied volatility registers at 0%, reflecting an exceptionally flat volatility surface for the near‑term horizon and confirms market expectation of swings. The skew is bearish, with call demand outpacing put demand, consistent with the observed open‑interest tilt toward downside protection, aligning with lower‑strike put accumulation observed.

Key OI Levels

The concentration peaks at 25,200 CE (43,620 OI) and 24,400 PE (26,160 OI), which serves as focal liquidity point.

Frequently Asked Questions

What is the highest call OI strike for NIFTY Fin Service today?
The strike with highest call (CE) open interest for NIFTY Fin Service is ₹25,200 for the 2026-10-27 expiry. This acts as a key resistance level since call writers will defend this strike aggressively near expiry.
What is the highest put OI strike for NIFTY Fin Service today?
The strike with highest put (PE) open interest for NIFTY Fin Service is ₹24,400 for the 2026-10-27 expiry. This acts as a key support level — put writers will tend to defend this level near expiry.
What does OI buildup in NIFTY Fin Service options mean?
Open Interest (OI) buildup in NIFTY Fin Service options shows how many net new contracts are being created at each strike. Rising OI at a strike means fresh positions (writers or buyers). Rising OI with rising price = long buildup (bullish); rising OI with falling price = short buildup (bearish).
When does NIFTY Fin Service options expire?
NIFTY Fin Service options have their nearest expiry on 2026-10-27. NSE F&O stocks have monthly expiry contracts — typically the last Tuesday of each month. MarketNetra shows data for the nearest two expiries.
How to read NIFTY Fin Service option chain?
The NIFTY Fin Service option chain shows calls (CE) on the left and puts (PE) on the right for each strike price. Key columns: OI (total open contracts), OI Change (new positions today), Volume (today's trades), IV (implied volatility — higher = more uncertainty), and LTP (last traded price). The ATM (at-the-money) strike is highlighted in blue.