Establishing a connection
Establishing a connection
BANKNIFTY · OI Heatmap
This heatmap shows where BANKNIFTY open interest is concentrating strike by strike and how that concentration migrates through the session. The heaviest call strike currently sits at 57,500 and the heaviest put strike at 57,500, with spot at 56,777.55.
| Rank | Call strike | Call OI | Put strike | Put OI |
|---|---|---|---|---|
| 1 | 57,500 | 21,75,600 | 57,500 | 18,64,140 |
| 2 | 58,000 | 14,88,840 | 57,000 | 9,24,780 |
| 3 | 60,000 | 11,11,140 | 58,000 | 8,87,730 |
| 4 | 59,000 | 10,41,240 | 56,000 | 8,08,890 |
| 5 | 57,000 | 7,61,160 | 55,000 | 7,28,850 |
| 6 | 58,500 | 7,36,620 | 54,000 | 6,29,550 |
The heaviest BANKNIFTY call open interest is at the 57,500 strike with 21,75,600 contracts, and the heaviest put open interest at 57,500 with 18,64,140 contracts. With spot near 56,777.55, those two strikes bracket the range the option market is currently positioned around.
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.
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.
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.
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.
The same symbol across every other live workspace.