The Closing Tape
SENSEX closed 0.36 percent over its gamma flip, in a positive-gamma regime.
All 3 fell below their opening print, stayed under it into the close, and shut inside ranges no wider than 2.07 percent.
| Max gamma strike + call wall 188.65 pts above | 23,000.00 | |
| CLOSE | 22,811.35 | |
| Gamma flip 125.19 pts below | 22,686.16 | |
| Put wall 311.35 pts below | 22,500.00 |
Opened 23,051.70 and spent the day below it, low to 22,654.15, before closing 22,811.35. It finished between the gamma flip at 22,686 and the max gamma strike + call wall at 23,000, 188.65 points under the nearer one above. Hedging dampens from here.
- Regime
- POSITIVE GAMMA
- Net GEX
- +11,233 Cr
- ATM IV
- 14.35%
- Expiry
- 6.00 days to 2026-10-27
| Max gamma strike 1,023.10 pts above | 56,000.00 | |
| Call wall 23.10 pts above | 55,000.00 | |
| CLOSE | 54,976.90 | |
| Gamma flip 342.42 pts below | 54,634.48 | |
| Put wall 976.90 pts below | 54,000.00 |
Opened 55,653.35 and spent the day below it, low to 54,704.55, before closing 54,976.90. It finished between the gamma flip at 54,634 and the call wall at 55,000, 23.10 points under the nearer one above. Hedging dampens from here.
- Regime
- POSITIVE GAMMA
- Net GEX
- +1,456 Cr
- ATM IV
- 15.27%
- Expiry
- 6.00 days to 2026-10-27
| Max gamma strike + call wall 290.31 pts above | 74,000.00 | |
| CLOSE | 73,709.69 | |
| Put wall 209.69 pts below | 73,500.00 | |
| Gamma flip 263.84 pts below | 73,445.85 |
Opened 74,256.67 and spent the day below it, low to 73,239.58, before closing 73,709.69. It finished between the put wall at 73,500 and the max gamma strike + call wall at 74,000, 290.31 points under the nearer one above. Hedging dampens from here.
- Regime
- POSITIVE GAMMA
- Net GEX
- +8,013 Cr
- ATM IV
- 18.81%
- Expiry
- 1.00 days to 2026-10-22
Calls to the right in gold, puts to the left in violet, all three on one shared scale. Net is what survives when they cancel.
The first bar is every open contract that exists. The second is only what changed today. Opposite directions mean today pushed against the position rather than adding to it.
Look at the BANKNIFTY pair in Flows. The standing book is short 5,082 Cr of delta while today’s flow was long 6,850 Cr, 135 percent of it, the other way.
- Call wall heaviest call open interest above spot
- Put wall heaviest put open interest below spot
- Gamma levels max gamma strike, zero gamma, the flip
- Close where it actually finished
Open, high and low mean the first, highest and lowest of 630 samples taken between 09:16 and 15:39 IST, not the exchange’s official prints, and the close is the last price we sampled rather than the settlement price. GEX is normalised to five days and compares across days for one index, never between indices. Volume reads zero at every strike after the close, so no volume figure appears above.
Same time tomorrow.
This is a description, not advice. It reports what the options book measured at the close on 21 October 2026. Nothing in it is a recommendation to buy, sell or hold any security, and Hedgewall is not a registered investment adviser.
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