COLBColumbia Banking System, Inc.

$28.37+11% 1Y

What is the market doing?

Mixed

No clear lean: rangebound and moderately shorted.

2 neutral, 1 without data
TrendRangeboundderived · Oct 9, 2026

Rangebound, no clear trend. Price is −3% vs its 200-day average.

Short interest3.6% of sharesFINRA · Sep 15, 2026

Moderately shorted, settled Sep 15, 2026, about a week of normal trading to cover. Down 1.1% since the previous count, up from 3.3% of shares outstanding three months ago.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

1-year returnmiddle of the market
vs 200-day avgmiddle of the market

Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.

How COLB is trading

Columbia Banking System, Inc. is +11% over the past year while the S&P 500 is +18%: 7.3 points behind the market.

+11%

1-year return · S&P 500 +18%

vs 200-day average
−3.2%

vs 200-day average · below trend, but not far

RSI (14)
33

RSI (14) · neutral

Below its 52-week high
16%

Below its 52-week high

Sep 18, 2024$18.97 – $33.63 · dashed line: 200-day averageOct 9, 2026
Details›
Last close2026-10-09
$28.37
1 monthS&P 500 +2.7%
−5.6%
1 yearS&P 500 +18%
+11%
5 yearsS&P 500 +88%
+10%
vs 50-day average$30.26
−6.2%
52-week high
$33.63
52-week low
$23.18
Annualised volatility
32%
Insider buying, net, 6 monthsForms 3/4/5 to 2026-10-08
−$93K
Calendar-year price return
YearReturn
2026 (year to date)+4.0%
2025+9.4%
2024+8.1%
2023−5.9%
2022−4.3%
2021−6.2%
2020−7.6%
2019+16%
2018−14%
2017−0.65%
Average return by calendar month, 2016–2026
MonthYearsPositiveAverage
Jan106 of 10−1.5%
Feb104 of 10−0.49%
Mar102 of 10−8.1%
Apr105 of 10−0.45%
May105 of 10−0.35%
Jun106 of 10+2.7%
Jul118 of 11+4.7%
Aug115 of 11+0.24%
Sep114 of 11−0.64%
Oct117 of 11+3.9%
Nov109 of 10+8.0%
Dec105 of 10+0.82%

End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.