NSE & BSE Indices Futures and Options Open Interest Volume Analysis for 28/09/2026

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Open Interest Volume Analysis

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Diving into our daily Open Interest Volume Analysis, the critical institutional takeaway is that Friday’s localized accumulation was violently overridden by true directional conviction to the downside. Smart money executed high-velocity tactical risk-reduction (long liquidation) in front-month contracts, directly merging it with structural “Fresh Shorts” deployed across the October forward curve.

With rollover rates surging past the 60% threshold across the board (NIFTY at 63%, BANKNIFTY at 66%, MIDCPNIFTY at 68%), the institutional footprint is undeniable: NIFTY October futures absorbed a massive +29.98% OI in Fresh Shorts on a 78% volume surge, while BANKNIFTY and MIDCPNIFTY October contracts piled on ~25% OI in aggressive forward-month shorting.

The options matrix reflects severe capitulation. NIFTY’s monthly Put-Call Ratio collapsed from an optimistic 0.925 down to an extremely oversold 0.600, as put writers abandoned ship and call writers ruthlessly clamped down on the 23,000 level. Let’s break down the strike-level inventory, basis realignments, and actionable expiry-eve execution triggers for tomorrow’s opening bell!

NSE & BSE F&O Market Signals

NIFTY Future analysis

NIFTY Spot closed at: 22780.25 (-1.557%)

Combined = September + October + November

Combined Fut Open Interest Change: 2.93%

Combined Fut Volume Change: 52.40%

Combined Fut Open Interest Analysis: Fresh Short

Rollover: 63% Previous 50%

NIFTY SEPTEMBER Future closed at: 22819.6 (-1.583%)

Sep Fut Premium 39.35 (Decreased by -6.85 points)

Sep Fut Open Interest Change: -24.02%

Sep Fut Volume Change: 23.10%

Sep Fut Open Interest Analysis: Long Covering

NIFTY OCTOBER Future closed at: 22910.7 (-1.517%)

Oct Fut Premium 130.45 (Increased by 7.35 points)

Oct Fut Open Interest Change: 29.98%

Oct Fut Volume Change: 77.92%

Oct Fut Open Interest Analysis: Fresh Short

NIFTY Monthly Expiry (29/09/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.600 (Decreased from 0.925)

Put-Call Ratio (Volume): 1.096

Max Pain Level: 22950

Maximum CALL Open Interest: 23000

Maximum PUT Open Interest: 22000

Highest CALL Addition: 23000

Highest PUT Addition: 22600

BANKNIFTY Future Analysis

BANKNIFTY Spot closed at: 54471.65 (-1.995%)

Combined = September + October + November

Combined Fut Open Interest Change: 1.02%

Combined Fut Volume Change: 15.78%

Combined Fut Open Interest Analysis: Fresh Short

Rollover: 66% Previous 53%

BANKNIFTY SEPTEMBER Future closed at: 54556.2 (-1.989%)

Sep Fut Premium 84.55 (Increased by 1.35 points)

Sep Fut Open Interest Change: -26.6%

Sep Fut Volume Change: 3.2%

Sep Fut Open Interest Analysis: Long Covering

BANKNIFTY OCTOBER Future closed at: 54854.6 (-1.980%)

Oct Fut Premium 382.95 (Increased by 0.75 points)

Oct Fut Open Interest Change: 25.43%

Oct Fut Volume Change: 21.71%

Oct Fut Open Interest Analysis: Fresh Short

BANKNIFTY Monthly Expiry  (29/09/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.680 (Decreased from 0.790)

Put-Call Ratio (Volume): 1.061

Max Pain Level: 55500

Maximum CALL Open Interest: 57500

Maximum PUT Open Interest: 54000

Highest CALL Addition: 55000

Highest PUT Addition: 54000

MIDCPNIFTY Future Analysis

MIDCPNIFTY Spot closed at: 13776.35 (-1.792%)

Combined = September + October + November

Combined Fut Open Interest Change: -3.44%

Combined Fut Volume Change: -2.15%

Combined Fut Open Interest Analysis: Long Covering

Rollover: 68% Previous 52%

MIDCPNIFTY SEPTEMBER Future closed at: 13762.6 (-1.968%)

Sep Fut Discount -13.75 (Decreased by -24.95 points)

Sep Fut Open Interest Change: -34.59%

Sep Fut Volume Change: 10.16%

Sep Fut Open Interest Analysis: Long Covering

MIDCPNIFTY OCTOBER Future closed at: 13794.8 (-1.724%)

Oct Fut Premium 18.45 (Increased by 9.35 points)

Oct Fut Open Interest Change: 25.17%

Oct Fut Volume Change: -12.66%

Oct Fut Open Interest Analysis: Fresh Short

MIDCPNIFTY Monthly Expiry (29/09/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.794 (Decreased from 0.808)

Put-Call Ratio (Volume): 0.965

Max Pain Level: 13975

Maximum CALL Open Interest: 14000

Maximum PUT Open Interest: 13500

Highest CALL Addition: 13800

Highest PUT Addition: 13500

SENSEX Monthly Expiry (29/10/2026) Future

SENSEX Spot closed at: 72,771.72 (-1.521%)

SENSEX Monthly Future closed at: 73,474.90 (-1.524%)

Premium: 703.18 (Decreased by -12.83 points)

Open Interest Change: 9.24%

Volume Change: -64.30%

Open Interest Analysis: Fresh Short

SENSEX Weekly Expiry (1/10/2026) Option Analysis

Put-Call Ratio (OI): 0.707 (Decreased from 1.094)

Put-Call Ratio (Volume): 1.197

Max Pain Level: 73200

Maximum CALL OI: 75000

Maximum PUT OI: 68000

Highest CALL Addition: 73000

Highest PUT Addition: 68000

FII & DII Cash Market Activity

FIIs Net SELL: ₹ 5,353.22 Cr.

DIIs Net BUY: ₹ 5,189.02 Cr.

FII Derivatives Activity

FII Trading Stats28.09.2625.09.2624.09.26
FII Cash (Provisional Data)-5,353.22-3,693.93-5,027.36
    
Index Future Open Interest Long Ratio12.20%11.44%11.01%
Index Future Volume Long Ratio49.16%49.16%44.52%
Call Option Open Interest Long Ratio45.14%43.84%43.57%
Call Option Volume Long Ratio50.16%50.16%49.35%
Put Option Open Interest Long Ratio65.27%66.13%67.75%
Put Option Volume Long Ratio49.98%49.98%51.10%
Stock Future Open Interest Long Ratio53.90%53.81%53.73%
Stock Future Volume Long Ratio50.14%50.14%49.65%
    
Index FuturesFresh ShortFresh ShortFresh Short
Index OptionsFresh ShortFresh LongFresh Long
    
Nifty FuturesFresh ShortShort CoveringFresh Short
Nifty OptionsFresh LongFresh LongFresh Long
    
BankNifty FuturesShort CoveringFresh ShortFresh Short
BankNifty OptionsFresh ShortShort CoveringFresh Long
    
FinNifty FuturesLong CoveringShort CoveringLong Covering
FinNifty OptionsShort CoveringFresh LongFresh Short
    
MidcpNifty FuturesLong CoveringFresh LongShort Covering
MidcpNifty OptionsFresh ShortFresh ShortFresh Short
    
NiftyNxt50 FuturesLong CoveringFresh ShortLong Covering
NiftyNxt50 OptionsFresh LongFresh LongFresh Short
    
Stock FuturesShort CoveringFresh LongLong Covering
Stock OptionsShort CoveringLong CoveringShort Covering

SENSEX weekly Expiry (1/10/2026)

The SENSEX index closed at 72771.72. The SENSEX weekly expiry for OCTOBER 1, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.707 against previous 1.094. The 75000CE option holds the maximum open interest, followed by the 68000PE and 74000CE options. Market participants have shown increased interest with significant open interest additions in the 73000CE option, with open interest additions also seen in the 73500CE and 75000CE options. On the other hand, open interest reductions were prominent in the 73600PE, 74000PE

SENSEXWeeklyExpiry:01-10-2026
Index SpotPCR OIPrev PCR OIPCR VOL
72771.720.7071.0941.197
Total Open Interest Change in all CALLs & PUTs:
 CurrentPriorNet Ch
CALL:  1,73,53,180        97,15,800           76,37,380
PUT:  1,22,76,760    1,06,26,500           16,50,260
Top CALL Open Interest:
StrikeOIOI ChangeVolume
75000      10,77,460          5,37,800           76,59,820
74000      10,06,880          4,20,220           96,34,740
Top CALL Open Interest addition:
StrikeOIOI ChangeVolume
73000        6,87,460          6,38,700        1,29,68,200
73500        7,48,340          5,85,380        1,04,39,700
Top CALL Open Interest reduction:
StrikeOIOI ChangeVolume
75700        1,06,620            -67,960           12,91,380
75400        1,01,740            -57,920           19,11,140
Top CALL Volume:
StrikeOIOI ChangeVolume
73000        6,87,460          6,38,700        1,29,68,200
73500        7,48,340          5,85,380        1,04,39,700
Top PUT Open Interest:
StrikeOIOI ChangeVolume
68000      10,10,380          3,92,080           37,91,480
69000        7,72,500          1,41,440           36,49,000
Top PUT Open Interest addition:
StrikeOIOI ChangeVolume
68000      10,10,380          3,92,080           37,91,480
71500        4,51,980          2,68,580           55,03,260
Top PUT Open Interest reduction:
StrikeOIOI ChangeVolume
73600            58,340        -2,85,620           23,21,600
74000        3,04,760        -2,70,920           17,27,620
Top PUT Volume:
StrikeOIOI ChangeVolume
73000        5,48,120          1,52,680        2,43,77,280
72900        2,50,520          1,77,740        1,51,28,160

NIFTY Monthly Expiry (29/09/2026)

The NIFTY index closed at 22780.25. The NIFTY monthly expiry for SEPTEMBER 29, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.600 against previous 0.925. The 23000CE option holds the maximum open interest, followed by the 24000CE and 23500CE options. Market participants have shown increased interest with significant open interest additions in the 23000CE option, with open interest additions also seen in the 22900CE and 22800CE options. On the other hand, open interest reductions were prominent in the 23000PE, 23100PE

NIFTY Monthly Expiry:29-09-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         22,780.25                0.600                  0.925               1.096
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL: 28,56,49,180   21,46,40,450   7,10,08,730
 PUT: 17,14,75,495   19,86,42,235 -2,71,66,740
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               23,000    2,06,25,020      1,73,46,355       63,86,340
               24,000    1,77,78,995         21,69,180       20,22,133
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               23,000    2,06,25,020      1,73,46,355       63,86,340
               22,900    1,28,94,440      1,24,41,260       60,77,440
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               24,500       64,39,355        -37,31,715         6,25,009
               25,000       51,75,950        -33,21,045         3,00,477
 Top CALL Volume:
 Strike OI OI Change Volume
               23,000    2,06,25,020      1,73,46,355       63,86,340
               22,900    1,28,94,440      1,24,41,260       60,77,440
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               22,000    1,32,09,105               88,530       13,87,354
               22,800    1,10,00,730         20,22,475   1,11,47,805
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               22,600       79,43,715         30,44,990       33,59,039
               22,750       65,29,380         28,87,495       55,12,817
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               23,000       60,09,365        -84,25,300       34,79,827
               23,100       41,36,795        -68,09,595       10,75,717
 Top PUT Volume: 
 Strike OI OI Change Volume
               22,800    1,10,00,730         20,22,475   1,11,47,805
               22,850       45,98,555            2,32,700       73,96,460

BANKNIFTY Monthly Expiry (29/09/2026)

The BANKNIFTY index closed at 54471.65. The BANKNIFTY monthly expiry for SEPTEMBER 29, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.680 against previous 0.790. The 57500CE option holds the maximum open interest, followed by the 58000CE and 57000CE options. Market participants have shown increased interest with significant open interest additions in the 55000CE option, with open interest additions also seen in the 54500CE and 54800CE options. On the other hand, open interest reductions were prominent in the 57500CE, 57500PE

BANKNIFTY Monthly Expiry:29-09-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         54,471.65                0.680                  0.790               1.061
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL:    2,13,45,570      1,98,24,900       15,20,670
 PUT:    1,45,14,840      1,56,56,100     -11,41,260
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               57,500       14,74,140          -4,86,150         2,11,773
               58,000       12,86,400          -1,49,700         1,53,909
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               55,000       11,88,840         10,73,940         6,35,509
               54,500          5,70,810            5,39,970         3,22,938
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               57,500       14,74,140          -4,86,150         2,11,773
               58,500          4,70,940          -3,01,500             65,129
 Top CALL Volume:
 Strike OI OI Change Volume
               55,000       11,88,840         10,73,940         6,35,509
               55,500          7,28,790            2,80,770         4,33,203
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               54,000       11,79,420            2,99,910         7,37,383
               57,500          7,55,490          -4,32,750             18,315
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               54,000       11,79,420            2,99,910         7,37,383
               53,500          5,26,290            1,99,440         2,68,585
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               57,500          7,55,490          -4,32,750             18,315
               55,300             84,960          -3,53,550             63,850
 Top PUT Volume: 
 Strike OI OI Change Volume
               54,500          7,04,400            1,95,810         9,66,635
               54,000       11,79,420            2,99,910         7,37,383

MIDCPNIFTY Monthly Expiry (29/09/2026)

The MIDCPNIFTY index closed at 13776.35. The MIDCPNIFTY monthly expiry for SEPTEMBER 29, 2026, 2025 has revealed key trends in open interest. The current Put/Call Ratio is at 0.794 against previous 0.808. The 13500PE option holds the maximum open interest, followed by the 13800PE and 14000CE options. Market participants have shown increased interest with significant open interest additions in the 13800CE option, with open interest additions also seen in the 13500PE and 13600PE options. On the other hand, open interest reductions were prominent in the 72000CE, 71000PE

MIDCPNIFTY Monthly Expiry:29-09-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         13,776.35                0.794                  0.808               0.965
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL:    1,42,82,760      1,36,84,320         5,98,440
 PUT:    1,13,35,680      1,10,56,320         2,79,360
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               14,000       12,55,080            5,16,360             85,824
               13,800       10,34,160         10,06,800             81,352
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               13,800       10,34,160         10,06,800             81,352
               13,900          9,28,200            7,03,080             98,341
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               14,700          3,70,560          -3,14,400             10,754
               14,300          7,78,320          -2,86,440             39,476
 Top CALL Volume:
 Strike OI OI Change Volume
               13,900          9,28,200            7,03,080             98,341
               14,000       12,55,080            5,16,360             85,824
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               13,500       14,93,400            8,07,960             74,309
               13,800       12,85,200               15,240         1,38,871
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               13,500       14,93,400            8,07,960             74,309
               13,600          9,77,520            7,43,160             96,197
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               14,000          3,89,400          -6,96,840             21,133
               13,900          3,39,240          -4,32,360             53,208
 Top PUT Volume: 
 Strike OI OI Change Volume
               13,800       12,85,200               15,240         1,38,871
               13,700          4,92,120              -59,040             98,404

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

To wrap up today’s Open Interest Volume Analysis, Dalal Street has officially entrenched itself in a heavily negative gamma regime heading into tomorrow’s monthly expiry. With Put-Call Ratios deeply depressed and call writers holding absolute control, the institutional playbook dictates aggressive “Sell on Rallies” execution into freshly established overhead supply ceilings:

NIFTY (Forward Short Avalanche & 23,000 Call Ceiling): Front-month September contracts suffered severe Long Covering (-24.02% OI) as rollovers accelerated to 63%, but the real institutional damage occurred in October futures, which absorbed +29.98% OI in high-conviction Fresh Shorts on a 77.92% volume spike. In the monthly options chain (29/09 expiry), the PCR cratered to 0.600. Call writers confidently locked down the 23,000 strike (Maximum Call OI and Highest Call Addition), while put writers were forced to retreat their primary defense to 22,600, pulling Max Pain down to 22,950. Actionable Feedback: The 22,900–23,000 band is now a reinforced institutional supply wall. Adopt a strict “Sell on Rise” stance. Initiate tactical shorts on any pullback into 22,880–22,950 with a strict invalidation stop-loss above 23,020, targeting an expiry flush toward 22,700 and the 22,600 put-support floor.

BANKNIFTY (Aggressive Forward Shorting & Support Surrender): The banking heavyweight bled heavily (-1.99% spot), leading the broader market drag. While September contracts saw rapid Long Covering (-26.6% OI) lifting rollovers to 66%, October futures recorded a massive +25.43% OI addition in true directional Fresh Shorts. Monthly PCR deteriorated from 0.790 to 0.680, with call writers fiercely defending 55,000 (Highest Call Addition), forcing put writers to drop their primary anchor down to 54,000. Actionable Feedback: Counter-trend buying is extremely hazardous in this setup. Fade any morning relief bounce toward the 54,750–54,950 supply zone with risk strictly defined above 55,100. Look for an institutional continuation slide toward the 54,200 and 54,000 liquidity pockets.

MIDCPNIFTY (Basis Collapse & Panic Liquidations): Midcaps experienced a catastrophic technical breakdown (-1.79% spot). September futures saw violent Long Covering (-34.59% OI) as front-month basis collapsed into a deep -13.75 point discount, while October futures absorbed +25.17% OI in structural Fresh Shorts as rollovers peaked at 68%. Monthly PCR slipped to 0.794, with aggressive call additions capping upside at 13,800, setting Max Pain at 13,975. Actionable Feedback: The prior midcap resilience is completely broken. Avoid bottom-fishing at all costs. Look to short failed intraday bounces into the 13,780–13,850 resistance cluster with a tight stop-loss above 13,900, targeting a flush toward the 13,600 and 13,500 maximum put base.

SENSEX (Weekly PCR Collapse & Aggressive Forward Shorts): SENSEX monthly futures recorded a stark +9.24% OI addition in textbook Fresh Shorts. The weekly options matrix (01/10 expiry) witnessed a dramatic sentiment reversal, with the PCR plunging from 1.094 back down to 0.707. Call writers aggressively flooded the 73,000 strike (Highest Call Addition), stranding Max Pain at 73,200, while put support fell deeply to 68,000. Actionable Feedback: Upside momentum is completely neutralized. Sell any pre-expiry pullback toward 72,950–73,100 with a strict stop-loss placed above 73,250, targeting an orderly decline toward 72,200 and the 72,000 psychological mark.

Q: Why did NIFTY and BANKNIFTY futures experience a massive short build-up right before expiry?

A: This indicates high-conviction institutional distribution. As rollover rates surged past 60% (NIFTY at 63%, BANKNIFTY at 66%), institutional desks aggressively liquidated front-month September longs. Instead of rolling long positions forward, smart money deployed massive capital into October “Fresh Shorts” (+29.98% OI in NIFTY, +25.43% OI in BANKNIFTY), signaling structural weakness carrying into the new series.

Q: What does the collapse in the NIFTY Put-Call Ratio (PCR) down to 0.600 mean for expiry day?

A: A violent drop in the PCR from 0.925 down to 0.600 shows complete surrender by put writers. Utilizing our Open Interest Volume Analysis, we see option sellers abandoned their near-the-money put defenses and retreated deep down to 22,600. When PCR hits extreme oversold levels while call writers heavily dominate, it confirms a negative gamma regime where any intraday bounce will face aggressive institutional selling.

Q: Why did MIDCPNIFTY front-month futures slip into a steep -13.75 point discount?

A: This deep discount was caused by panic-driven long liquidation. September MIDCPNIFTY futures saw a catastrophic -34.59% drop in Open Interest as trapped buyers rushed for the exit ahead of settlement. When aggressive front-month dumping outpaces underlying spot declines, the futures price collapses below the spot price, triggering a discount and confirming the end of the recent midcap accumulation cycle.

Q: Where are the key expiry-day resistance levels for NIFTY and BANKNIFTY?

A: Heavy call writing has established ironclad overhead ceilings for both indices:
NIFTY: The 23,000 strike is the absolute supply wall, simultaneously holding the Maximum Call Open Interest and the Highest Call Addition. BANKNIFTY: Call writers have fiercely defended 55,000 as the highest addition node, pulling Max Pain down to 55,500.

Q: With rollover rates crossing 60% in a falling market, what is the outlook for the October series?

A: High rollover rates in a declining tape mean bears are confidently carrying their short exposure forward. Because the rollovers into October were overwhelmingly dominated by Fresh Shorts on expanding volume (such as NIFTY’s 77.9% volume surge), the institutional posture is structurally bearish. Market participants should expect this negative momentum to persist into the beginning of the October series until new put-writing bases are established.

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