Columbia Banking System I... (COLB)
NASDAQ: COLB
· Real-Time Price · USD
27.21
0.11 (0.41%)
At close: Aug 29, 2025, 12:34 PM
COLB Gamma Exposure By Expiry
The total Gamma Exposure (GEX) for COLB across all expirations is 2,498.35 shares per 1% move, with 3,477.36 from calls and 979.01 from puts. The put-call GEX ratio of 0.28 shows call-heavy positioning, potentially creating volatility as market makers hedge by selling into strength and buying weakness. The highest gamma concentration is at the Nov 21, 25 expiration with 1,393.84 net GEX, which may act as a magnet point for price action. Near-term exposure for Sep 19, 25 suggests potential support from positive gamma hedging flows.
COLB GEX Table
| Expiry Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Sep 19, 25 | 381.27 | -151 | 230.27 | 0.40 |
| Oct 17, 25 | 14.28 | -15.83 | -1.55 | 1.11 |
| Nov 21, 25 | 1,808.23 | -414.39 | 1,393.84 | 0.23 |
| Jan 16, 26 | 0 | 0 | 0 | n/a |
| Feb 20, 26 | 1,273.58 | -397.79 | 875.79 | 0.31 |