NSE & BSE Indices Futures and Options Open Interest Volume Analysis for 13/08/2026

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Open Interest Volume Analysis

Today’s Open Interest Volume Analysis for August 13, 2026, paints a fascinating picture of a market locked in a serious tug-of-war. We are seeing some highly calculated positioning from the big players, and the derivatives data is screaming caution mixed with a few pocket-sized opportunities. Here is the deep-dive breakdown of what the numbers are actually telling us today:

Bears are quietly building positions: Both NIFTY and BANKNIFTY are flashing clear “Fresh Short” buildups. We’re seeing open interest creeping up (over 1.2%) while futures volumes have completely tanked by over 50%. This divergence usually means smart money is quietly laying down bearish bets without triggering a widespread panic.

Midcaps are aggressively bucking the trend: While the frontline indices look heavy, MIDCPNIFTY is showing incredible resilience. We’re seeing active short covering in the August series alongside fresh long positions rolling directly into September, signaling that traders still see value in the broader market.

Premiums are a bit deceptive: Nifty and BankNifty futures premiums actually jumped significantly today (up ~37 and ~104 points respectively). Normally, expanding premiums signal bullishness, but when you pair them with fresh short OI, it strongly suggests that option writers are simply demanding higher premiums for the downside risk they are absorbing.

SENSEX is unwinding: We’re seeing a textbook “Long Covering” scenario in the Sensex monthly futures, with OI dropping over 3% while volumes doubled—a classic sign of exhausted bulls taking their profits off the table.

NSE & BSE F&O Market Signals

NIFTY Future analysis

NIFTY Spot closed at: 24395.85 (-0.164%)

Combined = August + September + October

Combined Fut Open Interest Change: 1.56%

Combined Fut Volume Change: -53.26%

Combined Fut Open Interest Analysis: Fresh Short

Rollover: 14% Previous 13%

NIFTY AUGUST Future closed at: 24468 (-0.010%)

Aug Fut Premium 72.15 (Increased by 37.6 points)

Aug Fut Open Interest Change: 1.21%

Aug Fut Volume Change: -53.86%

Aug Fut Open Interest Analysis: Fresh Short

NIFTY SEPTEMBER Future closed at: 24602 (-0.004%)

Sep Fut Premium 206.15 (Increased by 39.2 points)

Sep Fut Open Interest Change: 3.85%

Sep Fut Volume Change: -46.23%

Sep Fut Open Interest Analysis: Fresh Short

NIFTY Weekly Expiry (04/08/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.776 (Increased from 0.754)

Put-Call Ratio (Volume): 0.969

Max Pain Level: 24400

Maximum CALL Open Interest: 25000

Maximum PUT Open Interest: 24000

Highest CALL Addition: 24800

Highest PUT Addition: 24350

NIFTY Monthly Expiry (25/08/2026) Option Analysis

Put-Call Ratio (Open Interest): 1.006 (Decreased from 1.007)

Put-Call Ratio (Volume): 0.883

Max Pain Level: 24450

Maximum CALL Open Interest: 25000

Maximum PUT Open Interest: 24000

Highest CALL Addition: 25000

Highest PUT Addition: 21200

BANKNIFTY Future Analysis

BANKNIFTY Spot closed at: 57635.25 (-0.433%)

Combined = August + September + October

Combined Fut Open Interest Change: 1.23%

Combined Fut Volume Change: -60.15%

Combined Fut Open Interest Analysis: Fresh Short

Rollover: 9% Previous 9%

BANKNIFTY AUGUST Future closed at: 57861.4 (-0.252%)

Aug Fut Premium 226.15 (Increased by 104.6 points)

Aug Fut Open Interest Change: 1.2%

Aug Fut Volume Change: -60.4%

Aug Fut Open Interest Analysis: Fresh Short

BANKNIFTY SEPTEMBER Future closed at: 58213 (-0.238%)

Sep Fut Premium 577.75 (Increased by 111.6 points)

Sep Fut Open Interest Change: 0.55%

Sep Fut Volume Change: -57.62%

Sep Fut Open Interest Analysis: Fresh Short

BANKNIFTY Monthly Expiry  (25/08/2026) Option Analysis

Put-Call Ratio (Open Interest): 0.862 (Decreased from 0.875)

Put-Call Ratio (Volume): 0.988

Max Pain Level: 57800

Maximum CALL Open Interest: 58000

Maximum PUT Open Interest: 58000

Highest CALL Addition: 60000

Highest PUT Addition: 56000

MIDCPNIFTY Future Analysis

MIDCPNIFTY Spot closed at: 15078.15 (0.303%)

Combined = August + September + October

Combined Fut Open Interest Change: -0.02%

Combined Fut Volume Change: -63.71%

Combined Fut Open Interest Analysis: Short Covering

Rollover: 6% Previous 6%

MIDCPNIFTY AUGUST Future closed at: 15075.55 (0.397%)

Aug Fut Discount -2.6 (Increased by 14.15 points)

Aug Fut Open Interest Change: -0.07%

Aug Fut Volume Change: -72.35%

Aug Fut Open Interest Analysis: Short Covering

MIDCPNIFTY SEPTEMBER Future closed at: 15127.95 (0.392%)

Sep Fut Premium 49.8 (Increased by 13.55 points)

Sep Fut Open Interest Change: 0.12%

Sep Fut Volume Change: 25.78%

Sep Fut Open Interest Analysis: Fresh Long

MIDCPNIFTY Monthly Expiry (25/08/2026) Option Analysis

Put-Call Ratio (Open Interest): 1.055 (Increased from 1.005)

Put-Call Ratio (Volume): 1.151

Max Pain Level: 15000

Maximum CALL Open Interest: 15500

Maximum PUT Open Interest: 15000

Highest CALL Addition: 15800

Highest PUT Addition: 15000

SENSEX Monthly Expiry (27/08/2026) Future

SENSEX Spot closed at: 78,079.96 (0.146%)

SENSEX Monthly Future closed at: 78,305.30 (-0.005%)

Premium: 225.34 (Decreased by -117.26 points)

Open Interest Change: -3.27%

Volume Change: 100.85%

Open Interest Analysis: Long Covering

SENSEX Weekly Expiry (20/08/2026) Option Analysis

Put-Call Ratio (OI): 0.839 (Increased from 0.779)

Put-Call Ratio (Volume): 0.852

Max Pain Level: 78000

Maximum CALL OI: 78000

Maximum PUT OI: 78000

Highest CALL Addition: 78000

Highest PUT Addition: 78000

FII & DII Cash Market Activity

FIIs Net SELL: ₹ 510.69 Cr.

DIIs Net BUY: ₹ 4,353.09 Cr.

FII Derivatives Activity

FII Trading Stats13.08.2612.08.2611.08.26
FII Cash (Provisional Data)-510.69-1,002.50258.55
    
Index Future Open Interest Long Ratio12.29%12.51%11.86%
Index Future Volume Long Ratio36.03%34.92%33.84%
Call Option Open Interest Long Ratio38.38%39.96%40.43%
Call Option Volume Long Ratio49.15%49.56%49.63%
Put Option Open Interest Long Ratio68.01%70.37%71.75%
Put Option Volume Long Ratio49.65%50.19%49.63%
Stock Future Open Interest Long Ratio54.89%54.86%54.81%
Stock Future Volume Long Ratio50.52%50.72%48.73%
    
Index FuturesFresh ShortFresh ShortFresh Short
Index OptionsFresh ShortFresh ShortLong Covering
    
Nifty FuturesFresh ShortFresh ShortLong Covering
Nifty OptionsFresh ShortFresh ShortLong Covering
    
BankNifty FuturesLong CoveringFresh LongFresh Short
BankNifty OptionsFresh ShortFresh LongFresh Short
    
FinNifty FuturesFresh ShortFresh ShortFresh Short
FinNifty OptionsFresh ShortFresh ShortLong Covering
    
MidcpNifty FuturesFresh LongFresh LongLong Covering
MidcpNifty OptionsFresh LongFresh LongFresh Short
    
NiftyNxt50 FuturesFresh ShortFresh ShortFresh Long
NiftyNxt50 OptionsFresh LongFresh LongFresh Short
    
Stock FuturesFresh LongShort CoveringLong Covering
Stock OptionsFresh ShortFresh ShortFresh Short

SENSEX weekly Expiry (20/08/2026)

The SENSEX index closed at 78079.96. The SENSEX weekly expiry for AUGUST 20, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.839 against previous 0.779. The 78000CE option holds the maximum open interest, followed by the 80000CE and 78000PE options. Market participants have shown increased interest with significant open interest additions in the 78000PE option, with open interest additions also seen in the 78000CE and 77800PE options. On the other hand, open interest reductions were prominent in the 74500PE, 78400PE, and 79200PE options. Trading volume was highest in the 78000CE option, followed by the 78000PE and 80000CE options, indicating active trading in these strikes.

SENSEXWeeklyExpiry:20-08-2026
Index SpotPCR OIPrev PCR OIPCR VOL
78079.960.8390.7790.852
Total Open Interest Change in all CALLs & PUTs:
 CurrentPriorNet Ch
CALL:      50,74,060        25,56,060           25,18,000
PUT:      42,55,260        19,89,940           22,65,320
Top CALL Open Interest:
StrikeOIOI ChangeVolume
78000        5,40,780          3,31,260           23,28,160
80000        5,36,400          1,53,040           18,17,580
Top CALL Open Interest addition:
StrikeOIOI ChangeVolume
78000        5,40,780          3,31,260           23,28,160
77800        1,97,620          1,80,780              8,90,180
Top CALL Open Interest reduction:
StrikeOIOI ChangeVolume
75000              6,240                  -400                    2,100
82300              3,020                    -40                    3,500
Top CALL Volume:
StrikeOIOI ChangeVolume
78000        5,40,780          3,31,260           23,28,160
80000        5,36,400          1,53,040           18,17,580
Top PUT Open Interest:
StrikeOIOI ChangeVolume
78000        5,16,200          3,34,000           20,71,060
75000        4,19,420          1,51,640           10,24,440
Top PUT Open Interest addition:
StrikeOIOI ChangeVolume
78000        5,16,200          3,34,000           20,71,060
77800        2,48,560          2,27,120           13,27,580
Top PUT Open Interest reduction:
StrikeOIOI ChangeVolume
74500        1,39,260            -30,680              7,09,160
78400            20,640              -1,800                 66,320
Top PUT Volume:
StrikeOIOI ChangeVolume
78000        5,16,200          3,34,000           20,71,060
76000        2,70,880          1,47,340           13,96,320

NIFTY Weekly Expiry (18/08/2026)

The NIFTY index closed at 24395.85. The NIFTY weekly expiry for AUGUST 18, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.776 against previous 0.754. The 25000CE option holds the maximum open interest, followed by the 24800CE and 24500CE options. Market participants have shown increased interest with significant open interest additions in the 24800CE option, with open interest additions also seen in the 25000CE and 24350PE options. On the other hand, open interest reductions were prominent in the 22500PE, 25150CE, and 25700CE options. Trading volume was highest in the 24400PE option, followed by the 24400CE and 24350PE options, indicating active trading in these strikes.

NIFTYWeekly Expiry:18-08-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         24,395.85                0.776                  0.754               0.969
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL: 14,82,33,150   12,47,30,190   2,35,02,960
 PUT: 11,50,12,950      9,40,65,010   2,09,47,940
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               25,000    1,31,37,085         39,99,645         9,99,768
               24,800    1,07,73,165         52,13,195         9,05,114
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               24,800    1,07,73,165         52,13,195         9,05,114
               25,000    1,31,37,085         39,99,645         9,99,768
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               25,150          9,93,590          -4,27,635         3,15,383
               25,700       31,34,105          -3,87,660         1,50,561
 Top CALL Volume:
 Strike OI OI Change Volume
               24,400       70,27,215            9,86,635       23,43,939
               24,500    1,04,67,210         15,27,500       17,26,155
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               24,000       96,31,440         19,38,430       10,01,486
               24,300       77,90,120         21,48,185       22,16,367
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               24,350       44,83,700         21,76,525       23,15,828
               24,300       77,90,120         21,48,185       22,16,367
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               22,500       28,92,500          -4,90,620             91,710
               23,200       20,91,895          -2,71,115         1,63,937
 Top PUT Volume: 
 Strike OI OI Change Volume
               24,400       64,90,900         16,41,380       24,85,445
               24,350       44,83,700         21,76,525       23,15,828

NIFTY Monthly Expiry (25/08/2026)

The NIFTY index closed at 24395.85. The NIFTY monthly expiry for AUGUST 25, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 1.006 against previous 1.007. The 24000PE option holds the maximum open interest, followed by the 25000CE and 24500CE options. Market participants have shown increased interest with significant open interest additions in the 25000CE option, with open interest additions also seen in the 21200PE and 24400PE options. On the other hand, open interest reductions were prominent in the 24600PE, 23500PE, and 25250CE options. Trading volume was highest in the 25000CE option, followed by the 24000PE and 24500CE options, indicating active trading in these strikes.

NIFTY Monthly Expiry:25-08-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         24,395.85                1.006                  1.007               0.883
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL:    6,79,26,885      6,13,13,135       66,13,750
 PUT:    6,83,31,380      6,17,29,785       66,01,595
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               25,000       85,19,940         11,94,050         1,38,131
               24,500       74,68,370            5,86,105         1,14,792
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               25,000       85,19,940         11,94,050         1,38,131
               24,500       74,68,370            5,86,105         1,14,792
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               25,250          2,62,990              -42,835             11,256
               24,600       27,94,220              -33,475             66,376
 Top CALL Volume:
 Strike OI OI Change Volume
               25,000       85,19,940         11,94,050         1,38,131
               24,500       74,68,370            5,86,105         1,14,792
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               24,000       90,07,505            2,71,960         1,19,531
               24,500       60,82,050            6,45,710             79,332
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               21,200       21,61,380         10,07,565             21,856
               24,400       26,66,365            7,19,550             93,826
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               24,600       15,81,905          -1,33,510             22,781
               23,500       34,90,305              -85,995             55,889
 Top PUT Volume: 
 Strike OI OI Change Volume
               24,000       90,07,505            2,71,960         1,19,531
               24,400       26,66,365            7,19,550             93,826

BANKNIFTY Monthly Expiry (25/08/2026)

The BANKNIFTY index closed at 57635.25. The BANKNIFTY monthly expiry for AUGUST 25, 2026 has revealed key trends in open interest. The current Put/Call Ratio is at 0.862 against previous 0.875. The 58000CE option holds the maximum open interest, followed by the 60000CE and 58000PE options. Market participants have shown increased interest with significant open interest additions in the 60000CE option, with open interest additions also seen in the 58500CE and 61500CE options. On the other hand, open interest reductions were prominent in the 58200CE, 58000PE, and 57000CE options. Trading volume was highest in the 58000CE option, followed by the 57600PE and 57500PE options, indicating active trading in these strikes.

BANKNIFTY Monthly Expiry:25-08-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         57,635.25                0.862                  0.875               0.988
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL:    1,50,71,700      1,44,27,180         6,44,520
 PUT:    1,29,95,820      1,26,27,810         3,68,010
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               58,000       21,13,530              -13,440         1,12,656
               60,000       15,46,980            1,83,750             39,351
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               60,000       15,46,980            1,83,750             39,351
               58,500          9,42,990            1,21,680             48,762
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               58,200          2,22,270              -81,090             27,012
               57,000          5,94,060              -27,390             14,602
 Top CALL Volume:
 Strike OI OI Change Volume
               58,000       21,13,530              -13,440         1,12,656
               57,500          6,16,590               43,530             80,935
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               58,000       13,80,240              -74,070             77,789
               57,000          9,89,100              -20,310             42,276
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               56,000          8,16,750               57,660             30,154
               55,000          6,14,580               50,190             33,714
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               58,000       13,80,240              -74,070             77,789
               51,000          1,85,820              -25,440               3,490
 Top PUT Volume: 
 Strike OI OI Change Volume
               57,600          2,35,410               26,040             88,627
               57,500          6,21,690              -11,730             88,496

MIDCPNIFTY Monthly Expiry (25/08/2026)

The MIDCPNIFTY index closed at 15078.15. The MIDCPNIFTY monthly expiry for AUGUST 25, 2026, 2025 has revealed key trends in open interest. The current Put/Call Ratio is at 1.055 against previous 1.005. The 15500CE option holds the maximum open interest, followed by the 15000CE and 15000PE options. Market participants have shown increased interest with significant open interest additions in the 15000PE option, with open interest additions also seen in the 15050PE and 15800CE options. On the other hand, open interest reductions were prominent in the 62000PE, 73100CE, and 73100CE options. Trading volume was highest in the 15000PE option, followed by the 15000CE and 15500CE options, indicating active trading in these strikes.

MIDCPNIFTY Monthly Expiry:25-08-2026
 Index Spot PCR OI Prev PCR OI PCR VOL
         15,078.15                1.055                  1.005               1.151
 Total Open Interest Change in all CALLs & PUTs:
  Current Prior Net Ch
 CALL:       63,05,880         60,46,800         2,59,080
 PUT:       66,55,560         60,77,400         5,78,160
 Top CALL Open Interest: 
 Strike OI OI Change Volume
               15,500       14,70,960               19,560               7,781
               15,000          9,78,960              -29,280             13,254
 Top CALL Open Interest addition: 
 Strike OI OI Change Volume
               15,800          1,64,400               84,960               1,873
               15,200          4,02,720               77,160               6,748
 Top CALL Open Interest reduction: 
 Strike OI OI Change Volume
               15,000          9,78,960              -29,280             13,254
               15,400          3,98,760              -26,160               5,052
 Top CALL Volume:
 Strike OI OI Change Volume
               15,000          9,78,960              -29,280             13,254
               15,500       14,70,960               19,560               7,781
 Top PUT Open Interest: 
 Strike OI OI Change Volume
               15,000          9,69,960            2,06,040             14,179
               14,500          6,98,760               19,920               7,068
 Top PUT Open Interest addition: 
 Strike OI OI Change Volume
               15,000          9,69,960            2,06,040             14,179
               15,050          1,60,920            1,45,440               4,352
 Top PUT Open Interest reduction: 
 Strike OI OI Change Volume
               14,000          4,99,200          -1,05,360               5,044
               13,500          1,95,360              -17,400                   594
 Top PUT Volume: 
 Strike OI OI Change Volume
               15,000          9,69,960            2,06,040             14,179
               14,500          6,98,760               19,920               7,068

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

To wrap up this Open Interest Volume Analysis, the broader market is clearly walking a tightrope with a slight negative bias, but the data gives us strict lines in the sand to trade around. The heavyweights might be under pressure, but the options chain lays out an exact roadmap for how to navigate the remainder of this expiry. Here is your actionable game plan moving forward:

The Ultimate Catalyst: Mark this on your screens right now—if the indices can actually sustain above their monthly max pain levels (24450 for NIFTY and 57800 for BANKNIFTY), massive short covering is highly possible. Trapped bears will be forced to buy back their positions in a panic, which could easily trigger a violent, fast-paced squeeze upward.

NIFTY Trade Setup: The upside is heavily barricaded by Call writers camping out at 24800 and 25000. If the index fails to hold that 24450 max pain level, expect a slow bleed down toward the massive Put support base at 24000. Buy-on-dips only makes sense closer to 24000.

BANKNIFTY Straddle Trap: The options data shows equal maximum Open Interest for both Calls and Puts directly at the 58000 strike. This means institutional writers are heavily strangling this zone. Stay out of the chop—only take aggressive directional trades if we get a decisive daily close above 58000 or a harsh breakdown below the 57800 max pain.

Where to find the bulls: If you absolutely must take long trades in this choppy environment, stick to MIDCPNIFTY. A healthy Put-Call Ratio of 1.05 and highly aggressive Put writing at the 15000 strike gives you a much safer floor with a better risk-to-reward ratio than the larger indices right now.

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

FII / FPI trading activity in Capital Market Segment

NSE Derivatives Raw Data

BSE Derivatives Raw Data

Disclaimer

fnodata.com is a financial blog providing research-based data and analysis. The content creator of the fnodata.com is not a SEBI registered Investment Advisor. The content on this blog is for informational purposes only and should not be considered as investment advice. You are responsible for your own investment decisions. You should consult with a financial advisor or conduct your own research before making any investment decisions.


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