NSE & BSE Indices Futures And Options Open Interest Volume Analysis For 19/10/2026

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Welcome back to the trading desk! Monday’s session on October 19, 2026, set a distinctly bearish tone for the week, as Dalal Street faced a synchronized -0.6% to -1.1% haircut across primary benchmarks, confirming that last week’s minor stabilization was merely a tactical pitstop in a broader distribution cycle.

Applying our daily institutional Open Interest Volume Analysis, today’s tape offers a masterclass in separating tactical risk-reduction from true directional conviction. The headline story isn’t just the red spot close; it’s the massive institutional capital aggressively shorting the forward curve while trapped retail longs simply capitulate in the front month.

The futures basis mechanics are highly revealing: panicked bulls rushed to exit October NIFTY and BANKNIFTY contracts, triggering classic “Long Covering” (-1.85% and -3.5% OI respectively). This forced liquidation actually pushed NIFTY front-month basis out of a discount and back to a 6.25-point premium, while BANKNIFTY’s premium widened to 88.3 points. However, smart money entirely ignored the front month, choosing instead to deploy high-conviction “Fresh Shorts” deep into the November series.

The scale of this forward accumulation is alarming. BANKNIFTY November futures absorbed an eye-watering +20.54% OI expansion on a 57.42% volume surge, while NIFTY November soaked up +8.47% OI in structural fresh shorts. With MIDCPNIFTY completely decoupling into a deep discount (-32.15 points) and SENSEX’s weekly PCR crashing down to 0.741, let’s map out the exact strike inventory and actionable execution parameters for Tuesday’s opening bell!

NSE & BSE F&O Market Signals

NIFTY Future analysis

NIFTY Spot closed at: 22888.95 (-1.111%)

Combined = October + November + December

Combined Fut Open Interest Change: -0.01%

Combined Fut Volume Change: 16.49%

Combined Fut Open Interest Analysis: Long Covering

Rollover: 18% Previous 17%

NIFTY OCTOBER Future closed at: 22895.2 (-0.969%)

Oct Fut Premium 6.25 (Increased by 33.2 points)

Oct Fut Open Interest Change: -1.85%

Oct Fut Volume Change: 8.81%

Oct Fut Open Interest Analysis: Long Covering

NIFTY NOVEMBER Future closed at: 23008.8 (-0.940%)

Nov Fut Premium 119.85 (Increased by 38.9 points)

Nov Fut Open Interest Change: 8.47%

Nov Fut Volume Change: 52.71%

Nov Fut Open Interest Analysis: Fresh Short

NIFTY Monthly Expiry (27/10/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.876 (Decreased from 1.077)

Put-Call Ratio (Volume): 0.804

Max Pain Level: 23000

Maximum CALL Open Interest: 24000

Maximum PUT Open Interest: 22500

Highest CALL Addition: 24000

Highest PUT Addition: 21000

BANKNIFTY Future Analysis

BANKNIFTY Spot closed at: 55488.1 (-0.637%)

Combined = October + November + December

Combined Fut Open Interest Change: -1.29%

Combined Fut Volume Change: 17.48%

Combined Fut Open Interest Analysis: Long Covering

Rollover: 13% Previous 11%

BANKNIFTY OCTOBER Future closed at: 55576.4 (-0.611%)

Oct Fut Premium 88.3 (Increased by 14.3 points)

Oct Fut Open Interest Change: -3.5%

Oct Fut Volume Change: 11.6%

Oct Fut Open Interest Analysis: Long Covering

BANKNIFTY NOVEMBER Future closed at: 55905 (-0.582%)

Nov Fut Premium 416.9 (Increased by 28.9 points)

Nov Fut Open Interest Change: 20.54%

Nov Fut Volume Change: 57.42%

Nov Fut Open Interest Analysis: Fresh Short

BANKNIFTY Monthly Expiry (27/10/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.955 (Decreased from 1.063)

Put-Call Ratio (Volume): 0.977

Max Pain Level: 55600

Maximum CALL Open Interest: 56000

Maximum PUT Open Interest: 55000

Highest CALL Addition: 55500

Highest PUT Addition: 54500

MIDCPNIFTY Future Analysis

MIDCPNIFTY Spot closed at: 13565.15 (-1.110%)

Combined = October + November + December

Combined Fut Open Interest Change: 4.40%

Combined Fut Volume Change: 32.72%

Combined Fut Open Interest Analysis: Fresh Short

Rollover: 6% Previous 6%

MIDCPNIFTY OCTOBER Future closed at: 13533 (-1.319%)

Oct Fut Discount -32.15 (Decreased by -28.65 points)

Oct Fut Open Interest Change: 4.07%

Oct Fut Volume Change: 24.98%

Oct Fut Open Interest Analysis: Fresh Short

MIDCPNIFTY NOVEMBER Future closed at: 13582.6 (-1.309%)

Nov Fut Premium 17.45 (Decreased by -27.95 points)

Nov Fut Open Interest Change: 7.48%

Nov Fut Volume Change: 80.27%

Nov Fut Open Interest Analysis: Fresh Short

MIDCPNIFTY Monthly Expiry (27/10/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.900 (Decreased from 0.956)

Put-Call Ratio (Volume): 0.678

Max Pain Level: 13700

Maximum CALL Open Interest: 14500

Maximum PUT Open Interest: 13000

Highest CALL Addition: 13600

Highest PUT Addition: 13550

SENSEX Monthly Expiry (29/10/2026) Future

SENSEX Spot closed at: 73,852.90 (-1.173%)

SENSEX Monthly Future closed at: 73,976.15 (-0.948%)

Premium: 123.25 (Increased by 168.57 points)

Open Interest Change: 3.62%

Volume Change: -14.19%

Open Interest Analysis: Fresh Short

SENSEX Weekly Expiry (22/10/2026) Option Analysis

Put-Call Ratio (OI): 0.741 (Decreased from 1.234)

Put-Call Ratio (Volume): 1.092

Max Pain Level: 74000

Maximum CALL OI: 78000

Maximum PUT OI: 70000

Highest CALL Addition: 75000

Highest PUT Addition: 70500

FII & DII Cash Market Activity

FIIs Net SELL: ₹ 1,148.64 Cr.

DIIs Net BUY: ₹ 3,201.19 Cr.

FII Derivatives Activity

FII Trading Stats	19.10.26	16.10.26	15.10.26
FII Cash (Provisional Data)	-1,148.64	1,165.92	-5,285.37

Index Future Open Interest Long Ratio	10.38%	11.32%	10.80%
Index Future Volume Long Ratio	36.60%	62.87%	69.99%
Call Option Open Interest Long Ratio	40.76%	41.90%	43.40%
Call Option Volume Long Ratio	49.61%	49.68%	50.79%
Put Option Open Interest Long Ratio	69.78%	62.32%	60.82%
Put Option Volume Long Ratio	49.92%	50.35%	49.31%
Stock Future Open Interest Long Ratio	55.68%	56.01%	56.12%
Stock Future Volume Long Ratio	47.13%	49.32%	52.86%

Index Futures	Long Covering	Short Covering	Short Covering
Index Options	Long Covering	Fresh Long	Fresh Long

Nifty Futures	Long Covering	Short Covering	Short Covering
Nifty Options	Long Covering	Fresh Long	Fresh Long

BankNifty Futures	Long Covering	Fresh Long	Fresh Long
BankNifty Options	Fresh Short	Fresh Long	Fresh Short

FinNifty Futures	Fresh Short	Short Covering	Short Covering
FinNifty Options	Fresh Short	Fresh Short	Short Covering

MidcpNifty Futures	Long Covering	Fresh Short	Long Covering
MidcpNifty Options	Fresh Short	Fresh Short	Fresh Short

NiftyNxt50 Futures	Long Covering	Fresh Long	Long Covering
NiftyNxt50 Options	Fresh Long	Fresh Short	Long Covering

Stock Futures	Long Covering	Fresh Short	Fresh Long
Stock Options	Fresh Short	Fresh Short	Fresh Short

NSE & BSE Option market Trends : Options Insights

SENSEX weekly Expiry (22/10/2026)

The SENSEX index closed at 73852.9. The SENSEX weekly expiry for OCTOBER 22, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.741 against previous 1.234. The 78000CE option holds the maximum open interest, followed by the 75000CE and 76000CE options. Market participants have shown increased interest with significant open interest additions in the 75000CE option, with open interest additions also seen in the 78000CE and 76000CE options. On the other hand, open interest reductions were prominent in the 74600PE, 74500PE, and 74700PE options. Trading volume was highest in the 74000PE option, followed by the 75000CE and 74500CE options, indicating active trading in these strikes.

SENSEX	Weekly	Expiry:	22-10-2026
Index Spot	PCR OI	Prev PCR OI	PCR VOL
73852.9	0.741	1.234	1.092
Total Open Interest Change in all CALLs & PUTs:
	Current	Prior	Net Ch
CALL:	3,04,85,160	1,30,23,440	1,74,61,720
PUT:	2,25,92,380	1,60,71,480	65,20,900
Top CALL Open Interest:
Strike	OI	OI Change	Volume
78000	19,45,840	11,11,340	72,02,980
75000	18,16,440	13,13,420	2,08,88,060
Top CALL Open Interest addition:
Strike	OI	OI Change	Volume
75000	18,16,440	13,13,420	2,08,88,060
78000	19,45,840	11,11,340	72,02,980
Top CALL Open Interest reduction:
Strike	OI	OI Change	Volume
83500	32,400	-44,680	2,55,400
82000	70,520	-23,840	4,96,560
Top CALL Volume:
Strike	OI	OI Change	Volume
75000	18,16,440	13,13,420	2,08,88,060
74500	10,51,680	5,44,940	2,03,55,460
Top PUT Open Interest:
Strike	OI	OI Change	Volume
70000	17,56,960	2,20,400	78,33,240
72000	12,84,980	4,71,680	1,18,41,420
Top PUT Open Interest addition:
Strike	OI	OI Change	Volume
70500	11,99,400	7,72,100	52,61,400
72500	11,39,980	5,91,660	1,14,56,160
Top PUT Open Interest reduction:
Strike	OI	OI Change	Volume
74600	1,15,400	-2,21,940	79,28,760
74500	2,48,680	-2,11,580	1,54,96,020
Top PUT Volume:
Strike	OI	OI Change	Volume
74000	6,67,820	-1,02,800	2,53,39,280
73000	11,43,520	2,81,560	1,70,16,940

NIFTY Monthly Expiry (27/10/2026)

The NIFTY index closed at 22888.95. The NIFTY monthly expiry for OCTOBER 27, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.876 against previous 1.077. The 24000CE option holds the maximum open interest, followed by the 23500CE and 23000CE options. Market participants have shown increased interest with significant open interest additions in the 24000CE option, with open interest additions also seen in the 23000CE and 24500CE options. On the other hand, open interest reductions were prominent in the 24950CE, 27000CE, and 27200CE options. Trading volume was highest in the 23000PE option, followed by the 23000CE and 23500CE options, indicating active trading in these strikes.

NIFTY	Monthly	Expiry:	27-10-2026
Index Spot	PCR OI	Prev PCR OI	PCR VOL
22,888.95	0.876	1.077	0.804
Total Open Interest Change in all CALLs & PUTs:
	Current	Prior	Net Ch
CALL:	14,57,31,690	9,28,92,670	5,28,39,020
PUT:	12,76,88,015	10,00,45,530	2,76,42,485
Top CALL Open Interest:
Strike	OI	OI Change	Volume
24,000	1,38,63,460	55,10,180	4,39,046
23,500	1,27,90,700	23,00,350	5,69,503
Top CALL Open Interest addition:
Strike	OI	OI Change	Volume
24,000	1,38,63,460	55,10,180	4,39,046
23,000	96,81,815	39,92,885	5,83,392
Top CALL Open Interest reduction:
Strike	OI	OI Change	Volume
24,950	1,07,965	-2,98,220	13,620
27,000	9,32,425	-2,65,980	10,003
Top CALL Volume:
Strike	OI	OI Change	Volume
23,000	96,81,815	39,92,885	5,83,392
23,500	1,27,90,700	23,00,350	5,69,503
Top PUT Open Interest:
Strike	OI	OI Change	Volume
22,500	79,81,870	10,49,230	3,80,326
22,000	79,49,760	22,77,990	2,88,308
Top PUT Open Interest addition:
Strike	OI	OI Change	Volume
21,000	68,10,960	25,66,525	1,61,523
22,000	79,49,760	22,77,990	2,88,308
Top PUT Open Interest reduction:
Strike	OI	OI Change	Volume
21,850	2,62,340	-70,785	27,984
21,350	2,92,435	-55,445	13,184
Top PUT Volume:
Strike	OI	OI Change	Volume
23,000	67,58,115	7,65,570	5,84,829
22,500	79,81,870	10,49,230	3,80,326

BANKNIFTY Monthly Expiry (27/10/2026)

The BANKNIFTY index closed at 55488.1. The BANKNIFTY monthly expiry for OCTOBER 27, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.955 against previous 1.063. The 56000CE option holds the maximum open interest, followed by the 55000PE and 58000CE options. Market participants have shown increased interest with significant open interest additions in the 55500CE option, with open interest additions also seen in the 56000CE and 54500PE options. On the other hand, open interest reductions were prominent in the 54000PE, 55700PE, and 55000PE options. Trading volume was highest in the 55500PE option, followed by the 56000CE and 55500CE options, indicating active trading in these strikes.

BANKNIFTY	Monthly	Expiry:	27-10-2026
Index Spot	PCR OI	Prev PCR OI	PCR VOL
55,488.10	0.955	1.063	0.977
Total Open Interest Change in all CALLs & PUTs:
	Current	Prior	Net Ch
CALL:	1,53,50,340	1,39,80,630	13,69,710
PUT:	1,46,61,630	1,48,63,890	-2,02,260
Top CALL Open Interest:
Strike	OI	OI Change	Volume
56,000	14,62,080	2,46,300	1,63,321
58,000	11,20,380	21,510	61,054
Top CALL Open Interest addition:
Strike	OI	OI Change	Volume
55,500	10,30,860	2,95,440	1,60,758
56,000	14,62,080	2,46,300	1,63,321
Top CALL Open Interest reduction:
Strike	OI	OI Change	Volume
59,000	6,77,460	-73,200	46,066
54,300	45,450	-56,940	6,924
Top CALL Volume:
Strike	OI	OI Change	Volume
56,000	14,62,080	2,46,300	1,63,321
55,500	10,30,860	2,95,440	1,60,758
Top PUT Open Interest:
Strike	OI	OI Change	Volume
55,000	12,66,480	-88,320	1,01,380
55,500	10,80,270	1,14,180	2,01,020
Top PUT Open Interest addition:
Strike	OI	OI Change	Volume
54,500	5,91,120	1,56,420	64,197
55,500	10,80,270	1,14,180	2,01,020
Top PUT Open Interest reduction:
Strike	OI	OI Change	Volume
54,000	6,79,590	-1,53,540	66,693
55,700	1,47,360	-90,270	85,116
Top PUT Volume:
Strike	OI	OI Change	Volume
55,500	10,80,270	1,14,180	2,01,020
55,600	1,54,350	-12,660	1,08,186

MIDCPNIFTY Monthly Expiry (27/10/2026)

The MIDCPNIFTY index closed at 13565.15. The MIDCPNIFTY monthly expiry for OCTOBER 27, 2026, 2025 has revealed key trends in open interest. The current Put/Call Ratio is at 0.900 against previous 0.956. The 14500CE option holds the maximum open interest, followed by the 13000PE and 14200CE options. Market participants have shown increased interest with significant open interest additions in the 13550PE option, with open interest additions also seen in the 13600CE and 14000CE options. On the other hand, open interest reductions were prominent in the 68900PE, 68900PE, and 68900PE options. Trading volume was highest in the 14000CE option, followed by the 14200CE and 13700CE options, indicating active trading in these strikes.

MIDCPNIFTY	Monthly	Expiry:	27-10-2026
Index Spot	PCR OI	Prev PCR OI	PCR VOL
13,565.15	0.900	0.956	0.678
Total Open Interest Change in all CALLs & PUTs:
	Current	Prior	Net Ch
CALL:	93,35,640	86,15,520	7,20,120
PUT:	83,99,880	82,38,840	1,61,040
Top CALL Open Interest:
Strike	OI	OI Change	Volume
14,500	13,32,240	-1,680	11,231
14,200	9,90,960	18,000	19,984
Top CALL Open Interest addition:
Strike	OI	OI Change	Volume
13,600	3,37,080	1,53,840	10,216
14,000	9,75,600	1,49,400	23,573
Top CALL Open Interest reduction:
Strike	OI	OI Change	Volume
14,300	5,88,840	-1,94,040	10,475
14,400	2,06,760	-27,720	3,247
Top CALL Volume:
Strike	OI	OI Change	Volume
14,000	9,75,600	1,49,400	23,573
14,200	9,90,960	18,000	19,984
Top PUT Open Interest:
Strike	OI	OI Change	Volume
13,000	11,02,320	-84,480	10,013
13,500	8,89,080	46,680	12,762
Top PUT Open Interest addition:
Strike	OI	OI Change	Volume
13,550	2,76,120	2,27,520	4,367
12,900	2,31,960	1,05,240	4,201
Top PUT Open Interest reduction:
Strike	OI	OI Change	Volume
13,800	2,52,360	-1,42,920	5,753
13,000	11,02,320	-84,480	10,013
Top PUT Volume:
Strike	OI	OI Change	Volume
13,600	4,20,360	94,440	13,799
13,700	3,68,280	21,480	13,225

Conclusion: What the NSE & BSE Indices Futures and Options Open Interest Volume Analysis Tells Us

To synthesize today’s Open Interest Volume Analysis, Dalal Street has firmly locked into a negative gamma, supply-heavy regime. The tactical long covering in front-month contracts simply cleared the decks, while the massive influx of forward-month fresh shorts confirms deep institutional conviction for lower levels. Here is your actionable desk playbook:

NIFTY (Forward Short Blitz & Put Writers Fleeing): Benchmark October futures saw standard Long Covering (-1.85% OI), but November futures were hammered with high-conviction Fresh Shorts (+8.47% OI on a 52.71% volume spike). In the monthly options chain (27/10 expiry), the PCR softened to 0.876. Put writers completely surrendered near-the-money floors, dropping their Highest Put Addition all the way down to 21,000, while call writers established a massive fortress at 24,000. Actionable Feedback: The lack of near-term put support leaves the index highly vulnerable. Maintain a strict “Sell on Rallies” posture. Initiate tactical shorts on intraday pullbacks into the 22,950–23,000 Max Pain zone with an invalidation stop-loss above 23,060, targeting a swift momentum flush toward 22,750 and the 22,600 liquidity pool.

BANKNIFTY (Aggressive Institutional Distribution in November): The banking heavyweight delivered the session’s most glaring bearish footprint. While October futures shed -3.5% OI on Long Covering, November futures absorbed a staggering +20.54% OI in aggressive Fresh Shorts backed by a 57% volume surge. In the monthly chain (27/10), PCR slipped to 0.955. Call writers aggressively walked down their ceiling to 55,500 (Highest Call Addition), perfectly aligning with spot (55,488) and suffocating Max Pain at 55,600. Actionable Feedback: This is pure institutional distribution. Do not attempt to catch a falling knife here. Fade any relief rallies toward 55,550–55,600 with risk defined strictly above 55,750, targeting a structural breakdown toward the 55,000 monthly put defense and 54,800.

MIDCPNIFTY (Deep Discount Trap & Dual-Tenor Short Sledgehammer): Midcaps were ruthlessly liquidated (-1.110% spot). October futures plunged into a deep -32.15 point discount while absorbing +4.07% OI in Fresh Shorts. November futures compounded the damage, adding +7.48% OI in forward Fresh Shorts on an 80.27% volume explosion. The monthly PCR collapsed to 0.900, with call additions actively trapping upside at 13,600 against Max Pain at 13,700. Actionable Feedback: The midcap complex is the weakest link on the tape. Aggressively fade intraday bounces into 13,600–13,630 with a disciplined stop-loss placed above 13,720, targeting 13,400 and a continuation slide toward the 13,250 floor.

SENSEX (PCR Crush & Pre-Expiry Supply Wall): SENSEX monthly futures recorded +3.62% OI in structural Fresh Shorts as spot dropped -1.173%. Heading into the new weekly expiry (22/10), the options matrix saw its PCR aggressively compressed from 1.234 down to an oversold 0.741. Call writers heavily colonized the 75,000 strike (Highest Call Addition), while put writers established distant defense at 70,500, setting Max Pain at 74,000. Actionable Feedback: With the PCR nearing heavily oversold territory, expect choppy downside friction rather than a straight-line crash. Use the 74,000 Max Pain magnet as your primary supply wall; sell morning relief spikes into 73,950–74,050 with a tight stop-loss above 74,200, targeting a grind down toward 73,500 and 73,300.

Q: Why did NIFTY and BANKNIFTY futures premiums expand despite a red spot close and widespread liquidation?

When tracking institutional footprints through our Open Interest Volume Analysis, a simultaneous drop in open interest (-1.85% for NIFTY, -3.5% for BANKNIFTY) alongside a falling spot price signals mechanical Long Covering. Trapped retail bulls were forced to rapidly liquidate their October futures to cut losses. As they hit market-sell orders to exit, this forced liquidation temporarily pushed the front-month basis out of a discount and back to a premium. However, this premium expansion reflects panic exiting—not fresh institutional accumulation.

Q: What is the institutional significance of BANKNIFTY adding a massive 20.54% Open Interest in November futures?

This is arguably the most critical bearish footprint on Dalal Street right now. While the October series saw routine long covering, our Open Interest Volume Analysis reveals that institutional desks actively deployed heavy capital into the deferred November series. An explosive +20.54% open interest surge accompanied by a 57.42% volume spike confirms high-conviction “Fresh Shorts.” Smart money is aggressively rolling their heavy supply into the forward curve.
Actionable Feedback: The sheer scale of this forward-shorting confirms deep, structural distribution. Avoid bottom-fishing in banking names and treat the 55,500 level as a strict shorting zone targeting the 55,000 monthly put defense.

Q: Why did NIFTY’s put writers retreat so aggressively, and how does it impact immediate support?

Option sellers dictate the true support floors, and on Monday, they completely surrendered their near-the-money defenses. As the PCR softened to 0.876, put writers ruthlessly dropped their Highest Put Addition all the way down to 21,000, leaving a massive liquidity vacuum beneath the current market. Without institutional put writing to absorb the selling pressure, intraday pullbacks lack any structural safety net.
Actionable Feedback: The market is now operating in a negative gamma regime. Stick strictly to a "Sell on Rallies" playbook against the fortified 24,000 call ceiling, as downside floors have evaporated.

Q: How does the MIDCPNIFTY’s deep discount act as an institutional trap?

The broader markets are currently leading the downside distribution cycle. MIDCPNIFTY October futures plunged into a severe -32.15 point discount while absorbing +4.07% OI in Fresh Shorts. Furthermore, November futures compounded this damage with +7.48% forward Fresh Shorts on an 80% volume explosion. When futures trade at a deep discount while absorbing heavy dual-tenor short interest, it proves institutional players are aggressively dumping inventory into retail bids.
Actionable Feedback: Midcaps are the weakest link on the tape. Aggressively fade any intraday bounces toward the 13,600–13,630 resistance band, targeting a structural breakdown toward 13,400.

How should traders navigate SENSEX ahead of its October 22 weekly expiry?

SENSEX experienced a brutal PCR crush, dropping from 1.234 down to a deeply oversold 0.741 as call writers actively colonized the 75,000 strike. This effectively caps any runaway momentum. However, with the options tape nearing heavily oversold territory ahead of Thursday’s settlement, we expect choppy downside friction rather than a straight-line crash.
Actionable Feedback: Use the 74,000 Max Pain magnet as your primary institutional supply wall. Short morning relief spikes into 73,950–74,050 with a tight stop-loss, targeting a methodical grind down toward 73,500.

Check Previous Day’s NSE & BSE Indices F&O Analysis

FII / FPI trading activity in Capital Market Segment

NSE Derivatives Raw Data

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NSE & BSE Indices Futures and Options Open Interest Volume Analysis for 19/10/2026

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