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COLB — Columbia Banking Systems Inc

Nasdaq

Columbia Banking Systems Inc

CompareBack to Screener
$28.92
+0.19(+0.66%)
O
28.95
H
29.25
L
28.80
V
2.38M
⏱️ End-of-day dataAs of Oct 2, 2026
OverviewStatisticsFinancialsHistorical DataOptionsDividend HistoryNewsChart
Underlying Price$28.92
Implied Volatility (IV)0.6%
Put / Call Ratio2.38
Total Options Volume-
Total Open Interest206
Selected Expiration2026-10-16

COLB

Options Calculator
Expiration
CALLSSTRIKEPUTS
CalculatorLastChg% ChgBidAskVolOIIVStrikeLastChg% ChgBidAskVolOIIVCalculator
$0.60+0.00-$0.10$0.30-500.3%$30.00ATM$1.85+0.00-$1.10$1.75-1330.3%

Open Interest & Max Pain

2026-10-16
Max Pain$30.00+3.7% vs price
Call Open Interest61
Put Open Interest145
Put / Call (Open Interest)2.38
CallsPutsPrice $28.92Max painTop of chart = 133 contracts
25
30Max pain $30

Max pain is the strike where the open options would be worth the least at expiration, i.e. where option buyers as a group would lose the most. The chart shows strikes within 20% of the price. Open interest is from the last end-of-day update.