About Columbia Banking System, Inc. (COLB) data
Data as of September 30, 2026.
Columbia Banking System, Inc. (COLB) has 11.06M shares sold short as of the latest FINRA settlement report on September 30, 2026. Short interest has increased by 4.74% compared with the prior settlement. At the current average daily volume, covering all open short positions would take about 3.89 days (days to cover).
Frequently asked questions
What is the current short interest in COLB?
As of the latest FINRA settlement dated September 30, 2026, COLB had approximately 11,055,591 shares sold short. Short interest data is reported by FINRA twice per month.
How much does it cost to short COLB?
The latest borrow fee (cost to borrow) for COLB is 0.31% per year, based on IBKR data. Fees can change throughout the trading day as shares are borrowed and returned.
What is the days to cover ratio for COLB?
Days to cover for COLB is approximately 3.89 days. This estimates how many trading days it would take short sellers to buy back all outstanding short shares at the current average daily volume.
Is COLB a short squeeze candidate?
A squeeze needs shorts that are hard to close. COLB trades about 2,840,750 shares a day and would take roughly 3.89 days to unwind current short positions, at a current borrow fee of 0.31%. Higher days-to-cover and a rising borrow fee together are the setup to watch; neither alone is enough.