Oquilia Markets Lab

Market X-Ray, 21 October 2026

Name: Oquilia Market X-Ray, 21 October 2026: end-of-day positions in India's equity derivatives market
Creator: Oquilia Markets Lab

Who is positioned how in India’s futures and options market, read from NSE’s own end-of-day files and explained. Free, every trading evening. This is Wednesday, 21 October 2026.

SONACOMS -4.06% · OI +17.5%ANANDRATHI +1.14% · OI +16.6%ABB -6.24% · OI +12.3%360ONE -1.28% · OI +11.8%ATHERENERG -1.84% · OI +10.9%VMM -5.51% · OI +10.1%RADICO -2.62% · OI +9.5%ZYDUSLIFE +0.12% · OI +8.9%INFY +3.67% · OI +7.8%MAXHEALTH -1.92% · OI +7.5%IREDA -2.72% · OI +7.0%PRESTIGE -1.68% · OI +6.6%KALYANKJIL +0.96% · OI -6.5%MUTHOOTFIN -3.26% · OI +6.3%PREMIERENE -2.77% · OI +6.3%SRF -5.62% · OI +6.1%

NSE close · 21 Oct

Updates after 7.15 pm on trading days

Foreign investors were net short 2,77,628 index futures contracts, against 2,79,930 short on 19 Oct.
Of 213 F&O stocks, 32 saw long unwinding, 116 short build-up, 14 short covering and 11 long build-up.
Nifty options expiring 27 Oct: put-call ratio 0.70; the most call open interest is at 23,000 and the most put open interest at 22,000.
3 stocks are in the F&O ban: SAIL, AMBUJACEM, KAYNES.

Positioning

Who is positioned how

Index futures held by each kind of trader at the close, in contracts: long minus short. The line is the last 18 sessions.

Foreign investors (FII)

net index futures; +2,302 on the day

10% long90% short

Index options, net: calls −3,41,527, puts +5,97,220

Domestic institutions (DII)

net index futures; +1,117 on the day

79% long21% short

Index options, net: calls +7,448, puts +1,13,261

Brokers' own trading (Pro)

net index futures; +3,441 on the day

60% long40% short

Index options, net: calls −55,839, puts +1,15,949

Clients (retail and others)

net index futures; −6,860 on the day

84% long16% short

Index options, net: calls +3,89,918, puts −8,26,431

Build-up

Every F&O stock, at a glance

Each tile is a stock's futures: the price change on the day and the change in open interest across all expiries. Together they say whether positions were being opened or closed. Tap a colour to filter, a tile for its numbers.

Find a stockOrder by

213/213 stocks

Tap a tile for its numbers.

Options

Where the option positions are

NIFTYexpiry 27 Oct · close 22,811Puts to the left, calls to the rightput-call ratio

23,400
23,350
23,300
23,250
23,200
23,150
23,100
23,050
23,000
22,950
22,900
22,850
22,800
22,750
22,700
22,650
22,600
22,550
22,500
22,450
22,400
22,350
22,300
22,250
22,200

Most call open interest: 23,000 (1,62,89,260). Most put open interest: 22,000 (96,79,345). Boxed: the strike nearest the close.

BANKNIFTYexpiry 27 Oct · close 54,977Puts to the left, calls to the rightput-call ratio

56,200
56,100
56,000
55,900
55,800
55,700
55,600
55,500
55,400
55,300
55,200
55,100
55,000
54,900
54,800
54,700
54,600
54,500
54,400
54,300
54,200
54,100
54,000
53,900
53,800

Most call open interest: 56,000 (16,15,980). Most put open interest: 55,000 (12,61,470). Boxed: the strike nearest the close.

Position limits

Close to the F&O ban

Open interest as a share of each stock’s market-wide position limit. Above 95% NSE bans fresh positions; the ban lifts when it falls below 80%.

SAILIn ban
AMBUJACEMIn ban
KAYNESIn ban
LICHSGFIN86.4%
INOXWIND85.9%
MANAPPURAM85.6%
CROMPTON83.3%
BANDHANBNK81.9%
IDEA80.9%
LICI78.2%
APLAPOLLO77.7%
NMDC73.0%
PATANJALI71.4%
CANBK71.3%
IREDA71.3%

Delivery

Where buyers took delivery

F&O stocks with the highest share of shares traded that were taken into demat accounts rather than squared off the same day (turnover above Rs 100 crore).

Stock	Delivery	Price	Rs cr
LICI	74.2%	-0.33%	361
BHARTIARTL	70.9%	+0.88%	1,691
DIVISLAB	70.9%	+1.13%	626
ALKEM	70.5%	+0.22%	138
POWERGRID	68.3%	+0.72%	283
CIPLA	68.1%	-0.76%	163
GODREJCP	67.4%	+1.42%	155
MOTHERSON	67.3%	-0.56%	208
KOTAKBANK	67.1%	-1.02%	520
SUNPHARMA	66.2%	+0.12%	402
ADANIPORTS	65.9%	-0.97%	402
MARICO	65.9%	-0.30%	138
HDFCAMC	65.6%	-1.61%	128
360ONE	65.4%	-1.61%	108
TORNTPHARM	65.3%	-0.11%	129

How to read the X-Ray

Long build-up: price up, open interest up. New positions are being opened by buyers.
Short build-up: price down, open interest up. New positions are being opened by sellers.
Short covering: price up, open interest down. Sellers are closing positions.
Long unwinding: price down, open interest down. Buyers are closing positions.
Put-call ratio: open interest in puts divided by open interest in calls, across every strike of the expiry.
Participants: NSE splits open interest four ways: foreign portfolio investors (FII), domestic institutions such as mutual funds and insurers (DII), brokers trading on their own account (Pro), and everyone else (clients, mostly individuals).

Where the numbers come from

Every figure on this page is calculated from NSE’s public archive files for the session, published each evening: NSE participant-wise open interest, NSE F&O bhavcopy, NSE combined open interest and MWPL, NSE equity bhavcopy with delivery. The X-Ray updates after 7.15 pm on trading days.

What this is not

It is a reading of the exchange’s data, not advice: Oquilia is not a SEBI-registered adviser and says nothing here about what anyone should buy or sell. Positions change through the day and these are the closing figures. SEBI’s own studies found that most individual traders in equity derivatives lose money; see what a trade really costs in the True Cost Calculator.