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KEI · OI Heatmap

KEI Open Interest Heatmap — Where OI Is Concentrated

This heatmap shows where KEI open interest is concentrating strike by strike and how that concentration migrates through the session. The heaviest call strike currently sits at 5,000 and the heaviest put strike at 4,500, with spot at 4,704.5.

KEI most heavily positioned strikes — 29 Sep 2026 expiry as of market close, 8 Sep 2026
RankCall strikeCall OIPut strikePut OI
15,0007,90,3004,5002,90,850
25,5004,74,9505,0002,69,150
35,2003,43,1754,8002,14,550
45,3003,33,5505,4002,02,300
54,9003,31,2754,4001,71,500
65,6003,22,5254,7001,48,400
KEI OI Heatmap — frequently asked questions5
Where is KEI open interest concentrated right now?

The heaviest KEI call open interest is at the 5,000 strike with 7,90,300 contracts, and the heaviest put open interest at 4,500 with 2,90,850 contracts. With spot near 4,704.5, those two strikes bracket the range the option market is currently positioned around.

Does heavy open interest act as support or resistance in KEI?

Heavy open interest marks where positioning is crowded, and such strikes often behave as reference levels — call-heavy strikes above spot as resistance, put-heavy strikes below as support. This is an observation about crowding, not a rule. Levels break regularly, usually when that open interest unwinds quickly rather than defending.

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.

What is max pain?

Max pain is the strike at which the total value of all open call and put contracts expiring would be lowest, meaning the largest rupee amount of premium expires worthless. It is calculated purely from the open interest spread across strikes, and it is a positioning observation rather than a prediction of where price must settle.

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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