OZK vs. COLB

Last updated Apr 2, 2026

Compare and contrast key facts about Bank OZK (OZK) and Columbia Banking System, Inc. (COLB).

Performance

OZK vs. COLB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bank OZK (OZK) and Columbia Banking System, Inc. (COLB). The values are adjusted to include any dividend payments, if applicable.

OZK vs. COLB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OZK Bank OZK	1.30%	7.45%	-7.36%	29.12%	-11.24%	53.15%	7.57%	38.23%	-52.03%	-6.51%
COLB Columbia Banking System, Inc.	1.12%	9.36%	8.05%	-5.86%	-4.26%	-6.24%	-8.16%	15.54%	-14.36%	-0.65%

Fundamentals

Market Cap OZK : $5.17B COLB : $8.29B
EPS OZK : $6.32 COLB : $2.21
PE Ratio OZK : 7.30 COLB : 12.62
PEG Ratio OZK : 0.81 COLB : 1.71
PS Ratio OZK : 1.86 COLB : 2.22
PB Ratio OZK : 0.89 COLB : 1.06
Total Revenue (TTM) OZK : $2.81B COLB : $3.12B
Gross Profit (TTM) OZK : $1.17B COLB : $1.46B
EBITDA (TTM) OZK : $994.41M COLB : $548.31M

Returns By Period

In the year-to-date period, OZK achieves a 1.30% return, which is significantly higher than COLB's 1.12% return. Over the past 10 years, OZK has outperformed COLB with an annualized return of 4.04%, while COLB has yielded a comparatively lower 3.43% annualized return.

OZK

• 1D: 0.61%
• 1M: -3.17%
• YTD: 1.30%
• 6M: -7.28%
• 1Y: 10.62%
• 3Y*: 14.79%
• 5Y*: 6.22%
• 10Y*: 4.04%

COLB

• 1D: 1.79%
• 1M: -3.86%
• YTD: 1.12%
• 6M: 10.31%
• 1Y: 19.05%
• 3Y*: 16.17%
• 5Y*: -3.56%
• 10Y*: 3.43%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

OZK vs. COLB — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

OZK

OZK Risk / Return Rank: 51
OZK Sharpe Ratio Rank: 53
OZK Sortino Ratio Rank: 46
OZK Omega Ratio Rank: 47
OZK Calmar Ratio Rank: 54
OZK Martin Ratio Rank: 53

COLB

COLB Risk / Return Rank: 58
COLB Sharpe Ratio Rank: 60
COLB Sortino Ratio Rank: 53
COLB Omega Ratio Rank: 54
COLB Calmar Ratio Rank: 62
COLB Martin Ratio Rank: 64

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

OZK vs. COLB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bank OZK (OZK) and Columbia Banking System, Inc. (COLB). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	OZK	COLB	Difference
Sharpe ratio Return per unit of total volatility	0.35	0.54	-0.18
Sortino ratio Return per unit of downside risk	0.67	0.94	-0.27
Omega ratio Gain probability vs. loss probability	1.09	1.13	-0.04
Calmar ratio Return relative to maximum drawdown	0.55	0.99	-0.44
Martin ratio Return relative to average drawdown	1.20	2.51	-1.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OZK vs. COLB - Sharpe Ratio Comparison

The current OZK Sharpe Ratio is 0.35, which is lower than the COLB Sharpe Ratio of 0.54. The chart below compares the historical Sharpe Ratios of OZK and COLB, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	OZK	COLB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.35	0.54	-0.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.18	-0.09	+0.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.10	0.09	+0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.17	+0.39

Correlation

The correlation between OZK and COLB is 0.59, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

OZK vs. COLB - Dividend Comparison

OZK's dividend yield for the trailing twelve months is around 3.86%, less than COLB's 5.23% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OZK Bank OZK	3.86%	3.78%	3.55%	2.85%	3.15%	2.43%	3.45%	3.08%	3.48%	1.47%	1.20%	1.11%
COLB Columbia Banking System, Inc.	5.23%	5.19%	5.33%	5.17%	3.98%	3.48%	3.12%	2.75%	2.76%	2.03%	3.42%	3.57%

Drawdowns

OZK vs. COLB - Drawdown Comparison

The maximum OZK drawdown since its inception was -70.41%, smaller than the maximum COLB drawdown of -85.93%. Use the drawdown chart below to compare losses from any high point for OZK and COLB.

Drawdown Indicators

	OZK	COLB	Difference
Max Drawdown Largest peak-to-trough decline	-70.41%	-85.93%	+15.52%
Max Drawdown (1Y) Largest decline over 1 year	-19.03%	-18.38%	-0.65%
Max Drawdown (5Y) Largest decline over 5 years	-35.26%	-55.69%	+20.43%
Max Drawdown (10Y) Largest decline over 10 years	-70.41%	-60.80%	-9.61%
Current Drawdown Current decline from peak	-11.48%	-28.61%	+17.13%
Average Drawdown Average peak-to-trough decline	-15.69%	-27.57%	+11.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.73%	7.22%	+1.51%

Volatility

OZK vs. COLB - Volatility Comparison

The current volatility for Bank OZK (OZK) is 5.88%, while Columbia Banking System, Inc. (COLB) has a volatility of 6.95%. This indicates that OZK experiences smaller price fluctuations and is considered to be less risky than COLB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OZK	COLB	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.88%	6.95%	-1.07%
Volatility (6M) Calculated over the trailing 6-month period	18.80%	21.83%	-3.03%
Volatility (1Y) Calculated over the trailing 1-year period	30.11%	35.59%	-5.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.86%	38.23%	-3.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	39.11%	38.01%	+1.10%

Financials

OZK vs. COLB - Profitability Comparison

The chart below illustrates the profitability comparison between Bank OZK and Columbia Banking System, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

OZK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Bank OZK reported a gross profit of 0.00 and revenue of 704.61M. Therefore, the gross margin over that period was 0.0%.

COLB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Columbia Banking System, Inc. reported a gross profit of 0.00 and revenue of 858.00M. Therefore, the gross margin over that period was 0.0%.

OZK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Bank OZK reported an operating income of 228.43M and revenue of 704.61M, resulting in an operating margin of 32.4%.

COLB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Columbia Banking System, Inc. reported an operating income of 0.00 and revenue of 858.00M, resulting in an operating margin of 0.0%.

OZK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Bank OZK reported a net income of 175.96M and revenue of 704.61M, resulting in a net margin of 25.0%.

COLB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Columbia Banking System, Inc. reported a net income of 215.00M and revenue of 858.00M, resulting in a net margin of 25.1%.