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GAIL · Open Interest

GAIL Open Interest — Live Call and Put OI by Strike

GAIL currently carries 2,51,83,700 contracts of call open interest against 1,66,35,300 of put open interest on the 29 Sep 2026 expiry, with spot at 174.03. The heaviest call strike is 175 and the heaviest put strike 190.

GAIL call and put open interest by strike — 29 Sep 2026 expiry as of market close, 8 Sep 2026
StrikeCall OIPut OIPut minus callSide
162.585,2002,13,000+1,27,800Put-heavy
1654,89,90013,84,500+8,94,600Put-heavy
167.535,5005,39,600+5,04,100Put-heavy
17011,67,95021,47,750+9,79,800Put-heavy
172.510,25,95010,65,000+39,050Put-heavy
175 ATM52,54,00022,82,650−29,71,350Call-heavy
177.526,27,0008,37,800−17,89,200Call-heavy
18051,90,10016,04,600−35,85,500Call-heavy
182.59,15,90099,400−8,16,500Call-heavy
18520,94,5002,09,450−18,85,050Call-heavy
187.56,95,80081,650−6,14,150Call-heavy
GAIL Open Interest — frequently asked questions5
What is the total open interest in GAIL options?

GAIL carries 2,51,83,700 contracts of call open interest and 1,66,35,300 of put open interest across the 29 Sep 2026 expiry, 85,48,400 more on the call side. That works out to a put-call ratio of 0.66, which on open interest alone reads as mildly call-heavy positioning. Figures are market close, 8 Sep 2026.

Which GAIL strikes are acting as support and resistance?

The heaviest put open interest sits at 190 with 39,61,800 contracts, and the heaviest call open interest at 175 with 52,54,000 contracts. With spot at 174.03, those strikes bracket the range the option market is positioned around. They are crowding observations rather than levels that must hold — they break regularly, usually when the open interest behind them unwinds rather than defends.

What is open interest in options?

Open interest is the total number of option contracts in a strike that are still open and not yet squared off or settled. It counts positions, not trades. Rising open interest means fresh contracts are being created and new money is entering that strike; falling open interest means existing positions are being closed out.

Who are option writers and why does their positioning matter?

Writers are the sellers of an option contract, taking the premium in exchange for the obligation. Because a writer carries open-ended risk, large written positions tend to be defended, and the strikes carrying the heaviest written open interest are the ones price most often stalls around. That is a description of where the crowd sits, not a guarantee about what price will do.

Do I need an account to use this?

No account or login is needed. Every tool on this site runs in your browser and is free to use. Nothing you select is stored on a server, and no order can be placed from here — Sahi is an analysis terminal, not a trading or execution platform.

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