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Check out our Dark Pool Levels

COLB
Columbia Banking Systems Inc
stock NASDAQ

At Close
Aug 14, 2026 3:59:59 PM EDT
32.70USD+0.801%(+0.26)2,543,430
0.00Bid   0.00Ask   0.00Spread
Pre-market
0.00USD-100.000%(-32.44)0
After-hours
Aug 14, 2026 4:07:30 PM EDT
32.73USD+0.092%(+0.03)492
OverviewOption ChainMax PainOption ChainPrice & VolumeSplitsDividendsHistoricalExchange VolumeDark Pool LevelsDark Pool PrintsExchangesShort VolumeShort Interest - DailyShort InterestBorrow Fee (CTB)Failure to Deliver (FTD)ShortsTrendsNewsMore
Expiration Dates
Aug 21, 2026Sep 18, 2026Nov 20, 2026Feb 19, 2027

ITM/OTM for Nov 20, 2026View All Dates
Calls ITMCalls OTMPuts ITMPuts OTM
7311,4831362


COLB Nov 20, 2026 Exp. - Volume by Strike
Puts
Calls

COLB Nov 20, 2026 Exp. - Open Interest by Strike

Puts
Calls

COLB Nov 20, 2026 Exp. - Max Pain @ $25.00

Puts
Calls


COLB Nov 20, 2026 Exp. - Option Chain
In the Money (ITM)
Calls
StrikePriceChangeVolOILastContract Name
40.00 C0.15+50.00%2469807-30COLB261120C00040000
35.00 C0.76+10.14%278508-13COLB261120C00035000
30.00 C2.95+22.92%764808-12COLB261120C00030000
25.00 C6.86+18.07%46908-03COLB261120C00025000
22.50 C00%0COLB261120C00022500
20.00 C10.01+19.88%11204-17COLB261120C00020000
17.50 C00%0COLB261120C00017500
15.00 C16.150%4206-16COLB261120C00015000
Puts
StrikePriceChangeVolOILastContract Name
40.00 P00%0COLB261120P00040000
35.00 P7.920%2104-01COLB261120P00035000
30.00 P1.45+9.02%25808-07COLB261120P00030000
25.00 P0.35-30.00%425708-05COLB261120P00025000
22.50 P0.40+5.26%10707-09COLB261120P00022500
20.00 P0.35-40.68%1605-05COLB261120P00020000
17.50 P0.40+60.00%33405-13COLB261120P00017500
15.00 P00%0COLB261120P00015000


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