Columbia Banking System I... (COLB)
NASDAQ: COLB
· Real-Time Price · USD
27.28
0.27 (1.00%)
At close: Aug 27, 2025, 10:52 AM
COLB Open Interest Chart
Open interest breakdown by expiration date for COLB
options contracts. Displaying data for 5
active expiration dates with future expiry.
Total open interest across all expiries is
3,007
contracts, with 2,052
call contracts and
955 put contracts. The
overall put-call open interest ratio is
0.47, indicating a
bullish
bias in positioning. Options expire from
Sep 19, 2025
to
Feb 20, 2026.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 19, 2025 | 198 | 135 | 0.68 |
| Oct 17, 2025 | 8 | 6 | 0.75 |
| Nov 21, 2025 | 1,231 | 457 | 0.37 |
| Jan 16, 2026 | 5 | 0 | 0.00 |
| Feb 20, 2026 | 610 | 357 | 0.59 |