Columbia Banking System (COLB) Options Chain
NASDAQ: COLBFinanceMajor BanksUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $28.53
- Put/call ratio (OI)
- 1.59
- Put/call ratio (volume)
- 0.88
- Expected move
- ±$0.4939
- Open interest (C / P)
- 58 / 92
COLB options summary
The COLB options chain for the October 16, 2026 expiration lists 3 call and 3 put contracts, with 7 days until expiration. Open interest stands at 58 calls and 92 puts, a put/call ratio of 1.59, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $30.00 strike is 12.5%, which implies the market expects a move of about ±$0.4939 (1.7%) in Columbia Banking System stock by expiration.
The most open interest sits at the $30.00 call (47 contracts) and the $30.00 put (84 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
COLB options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.90 | 0.00 | 0.00 | 25.00 | 0.00 | 0.00 | 0.35 | |||||
| 0.02 | 0.00 | 0.00 | 30.00 | 0.00 | 0.00 | 2.07 | |||||
| 0.05 | 0.00 | 0.00 | 35.00 | 0.00 | 0.00 | 6.20 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the COLB put/call ratio?
For the October 16, 2026 expiration, the COLB put/call ratio based on open interest is 1.59 (92 puts vs 58 calls), and 0.88 based on today's volume. A ratio above 1 means more puts than calls.
What is COLB's implied volatility?
At-the-money implied volatility for COLB options expiring October 16, 2026 is about 12.5%, an annualized estimate of how much the market expects Columbia Banking System stock to move.
How many COLB option expiration dates are there?
COLB has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.