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Columbia Banking Systems Inc COLB 30.48 0.05 0.18%

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ATM IV
0.27
Put Call Ratio (OI)
0.173
Put Call Ratio (Vol)
1.09
IV Rank
18.9
IV Percentile
24.4
Max pain
30

Gamma exposure (2026-11-06)

GEX estimates dealer hedging flow at each strike.

Positive GEX = dealers are long gamma; they buy the dip and sell the rip, dampening volatility. Negative GEX = dealers are short gamma; they sell the dip and buy the rip, amplifying volatility.

DTE \text{DTE}
14.0
196.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-15.5
15.5
View values by strike
COLB · Gamma exposure · 2026-11-06. USD of exposure per 1% underlying move.
StrikeCallsPuts
17.50 10.8 -511
20.00 154 -272
22.50 0 -238
25.00 7.14 K -16.5 K
30.00 186 K -30.1 K
35.00 129 K -2.58 K
40.00 23.2 K -24.7
45.00 0 -20.8