COFORGE gamma exposure, walls and max pain for 9 Oct 2026
Source: NSE end-of-day data, 8 Oct 2026. End of day, not live. Not investment advice.
COFORGE levels for the session of 9 Oct 2026, from the 8 Oct 2026 close of 1,814.34: call wall 1,900, put wall 1,800, gamma flip 1,675 (the close sat above it), max pain 1,800 for the 27 Oct 2026 expiry, put/call OI ratio 0.66, net GEX ₹12 cr per 1% move.
- Close
- 1,814.34
- 8 Oct 2026
- Call wall
- 1,900
- +4.72%
- Put wall
- 1,800
- -0.79%
- Gamma flip
- 1,675
- Max pain
- 1,800
- Tue 27 Oct 2026 expiry
- PCR (OI)
- 0.66
- nearest 0.67
- Net GEX
- ₹12 cr
- per 1% move
Sign convention on screen: Dealers long calls, short puts. Under the other reading (option writers short every option), net GEX is -₹57.5 cr per 1% move and there is no gamma flip. Why both are shown.
Gamma exposure by strike
Open interest and OI change by strike
| Strike | Call OI | Put OI | Call OI chg | Put OI chg | Call GEX | Put GEX | Net GEX |
|---|---|---|---|---|---|---|---|
| 1,740 | 86,925 | 1,04,500 | 0 | +4,750 | ₹0.55 cr | -₹0.66 cr | -₹0.11 cr |
| 1,760 | 1,77,175 | 3,81,425 | -3,325 | -11,875 | ₹1.2 cr | -₹2.6 cr | -₹1.4 cr |
| 1,780 | 2,10,900 | 2,16,125 | +950 | -2,375 | ₹1.5 cr | -₹1.5 cr | -₹0.04 cr |
| 1,800 | 7,27,225 | 6,89,225 | -38,000 | +35,625 | ₹5.3 cr | -₹5 cr | ₹0.26 cr |
| 1,820 | 2,29,425 | 1,32,525 | +1,18,275 | -14,250 | ₹1.7 cr | -₹0.98 cr | ₹0.72 cr |
| 1,840 | 5,08,250 | 2,68,850 | +21,375 | -475 | ₹3.8 cr | -₹2 cr | ₹1.8 cr |
| 1,860 | 4,24,650 | 1,06,400 | +1,47,725 | -15,200 | ₹3.1 cr | -₹0.79 cr | ₹2.4 cr |
| 1,880 | 1,93,325 | 68,875 | +72,200 | +17,575 | ₹1.4 cr | -₹0.5 cr | ₹0.91 cr |
| 1,900 | 8,74,000 | 3,01,150 | -89,300 | +17,100 | ₹6.1 cr | -₹2.1 cr | ₹4 cr |
Strike by expiry heatmap
| Strike | Tue 27 Oct 2026 | Mon 23 Nov 2026 |
|---|---|---|
| 1,940 | ₹0.71 | |
| 1,920 | ₹0.58 | |
| 1,900 | ₹3.9 | ₹0.08 |
| 1,880 | ₹0.91 | |
| 1,860 | ₹2.4 | |
| 1,840 | ₹1.8 | |
| 1,820 | ₹0.72 | |
| 1,800 | ₹0.21 | |
| 1,780 | ||
| 1,760 | -₹1.4 | |
| 1,740 | -₹0.11 | |
| 1,720 | -₹0.33 | |
| 1,700 | -₹1.9 | |
| 1,680 | -₹0.3 |
Expiries
| Expiry | Days | Lot size | Call OI | Put OI | PCR | Max pain |
|---|---|---|---|---|---|---|
| Tue 27 Oct 2026 | 19 | 475 | 57,00,000 | 37,93,825 | 0.67 | 1,800 |
| Mon 23 Nov 2026 | 46 | 475 | 49,400 | 23,275 | 0.47 | 1,800 |
| Tue 29 Dec 2026 | 82 | 475 | 950 | 475 | 0.50 | 1,760 |
Wall migration
| Date | Close | Call wall | Put wall | Gamma flip | Max pain | PCR | Call OI chg | Put OI chg |
|---|---|---|---|---|---|---|---|---|
| 8 Oct 2026 | 1,814.34 | 1,900 | 1,800 | 1,675 | 1,800 | 0.66 | +2,53,650 | +13,775 |
| 7 Oct 2026 | 1,822.23 | 1,900 | 1,800 | 1,696 | 1,800 | 0.69 | +2,45,100 | +45,600 |
| 6 Oct 2026 | 1,849.59 | 1,900 | 1,800 | 1,708 | 1,800 | 0.72 | +475 | -77,425 |
Method
Implied volatility from settlement prices, carry from put-call parity, risk-free rate 5.5%. 94 contracts used, 0 skipped with no solvable volatility, 0 expiring on the trade date left out. GEX is in ₹ crore per 1% move. Full method and sign convention.
Archive: 3 sessions stored since 6 Oct 2026, free, no account.