COSZX vs. ARTKX

Last updated Jun 4, 2026

COSZX (Columbia Overseas Value Fund) and ARTKX (Artisan International Value Fund) are both Foreign Large Cap Equities funds. Over the past 10 years, COSZX returned 10.22%/yr vs 10.70%/yr for ARTKX. Their correlation of 0.89 suggests significant overlap in exposure. COSZX charges 0.90%/yr vs 1.25%/yr for ARTKX.

Performance

COSZX vs. ARTKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Columbia Overseas Value Fund (COSZX) and Artisan International Value Fund (ARTKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COSZX achieves a 7.46% return, which is significantly lower than ARTKX's 10.51% return. Both investments have delivered pretty close results over the past 10 years, with COSZX having a 10.22% annualized return and ARTKX not far ahead at 10.70%.

COSZX

• 1D: 0.53%
• 1M: 0.93%
• YTD: 7.46%
• 6M: 10.18%
• 1Y: 28.08%
• 3Y*: 21.79%
• 5Y*: 11.46%
• 10Y*: 10.22%

ARTKX

• 1D: 0.58%
• 1M: 5.72%
• YTD: 10.51%
• 6M: 13.83%
• 1Y: 23.03%
• 3Y*: 16.67%
• 5Y*: 10.28%
• 10Y*: 10.70%

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

COSZX vs. ARTKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COSZX Columbia Overseas Value Fund	7.46%	45.80%	4.70%	16.05%	-5.99%	10.78%	-0.07%	22.37%	-16.70%	27.82%
ARTKX Artisan International Value Fund	10.51%	22.54%	6.38%	22.65%	-6.98%	16.66%	8.52%	23.98%	-15.70%	23.84%

Correlation

The correlation between COSZX and ARTKX is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.73
Correlation (3Y) Calculated over the trailing 3-year period	0.78
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Apr 2, 2008	0.89

The correlation between COSZX and ARTKX shifts across timeframes, from 0.73 (1 year) to 0.89 (all time), reflecting how their relationship changes across market environments.

Return for Risk

COSZX vs. ARTKX — Risk / Return Rank

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

COSZX

COSZX Risk / Return Rank: 41
COSZX Sharpe Ratio Rank: 45
COSZX Sortino Ratio Rank: 43
COSZX Omega Ratio Rank: 45
COSZX Calmar Ratio Rank: 37
COSZX Martin Ratio Rank: 37

ARTKX

ARTKX Risk / Return Rank: 36
ARTKX Sharpe Ratio Rank: 33
ARTKX Sortino Ratio Rank: 35
ARTKX Omega Ratio Rank: 41
ARTKX Calmar Ratio Rank: 37
ARTKX Martin Ratio Rank: 34

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.

COSZX vs. ARTKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Overseas Value Fund (COSZX) and Artisan International Value Fund (ARTKX). 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.

	COSZX	ARTKX	Difference
Sharpe ratio: Return per unit of total volatility	1.98	1.67	+0.30
Sortino ratio: Return per unit of downside risk	2.74	2.46	+0.29
Omega ratio: Gain probability vs. loss probability	1.36	1.34	+0.02
Calmar ratio: Return relative to maximum drawdown	2.30	2.29	+0.02
Martin ratio: Return relative to average drawdown	8.12	7.70	+0.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

COSZX vs. ARTKX - Sharpe Ratio Comparison

The current COSZX Sharpe Ratio is 1.98, which is comparable to the ARTKX Sharpe Ratio of 1.67. The chart below compares the historical Sharpe Ratios of COSZX and ARTKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	COSZX	ARTKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.98	1.67	+0.30
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.74	-0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	0.66	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	0.74	-0.53

Drawdowns

COSZX vs. ARTKX - Drawdown Comparison

The maximum COSZX drawdown since its inception was -63.37%, which is greater than ARTKX's maximum drawdown of -51.90%. Use the drawdown chart below to compare losses from any high point for COSZX and ARTKX.

Drawdown Indicators

	COSZX	ARTKX	Difference
Max Drawdown Largest peak-to-trough decline	-63.37%	-51.90%	-11.47%
Max Drawdown (1Y) Largest decline over 1 year	-11.76%	-9.96%	-1.80%
Max Drawdown (3Y) Largest decline over 3 years	-13.34%	-10.88%	-2.46%
Max Drawdown (5Y) Largest decline over 5 years	-25.77%	-24.95%	-0.82%
Max Drawdown (10Y) Largest decline over 10 years	-43.40%	-38.11%	-5.29%
Current Drawdown Current decline from peak	-4.51%	0.00%	-4.51%
Average Drawdown Average peak-to-trough decline	-17.90%	-6.73%	-11.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.33%	2.95%	+0.38%

Volatility

COSZX vs. ARTKX - Volatility Comparison

The current volatility for Columbia Overseas Value Fund (COSZX) is 3.56%, while Artisan International Value Fund (ARTKX) has a volatility of 4.38%. This indicates that COSZX experiences smaller price fluctuations and is considered to be less risky than ARTKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COSZX	ARTKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.56%	4.38%	-0.82%
Volatility (6M) Calculated over the trailing 6-month period	10.95%	10.64%	+0.31%
Volatility (1Y) Calculated over the trailing 1-year period	13.77%	13.63%	+0.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.84%	13.95%	+1.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.45%	16.17%	+1.28%

COSZX vs. ARTKX - Expense Ratio Comparison

COSZX has a 0.90% expense ratio, which is lower than ARTKX's 1.25% expense ratio.

Dividends

COSZX vs. ARTKX - Dividend Comparison

COSZX's dividend yield for the trailing twelve months is around 7.36%, more than ARTKX's 6.26% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARTKX Artisan International Value Fund	6.26%	6.90%	4.10%	2.84%	2.11%	9.72%	0.84%	3.64%	5.37%	3.89%	3.11%	6.17%
COSZX Columbia Overseas Value Fund	7.36%	7.91%	5.38%	3.97%	1.88%	3.59%	1.69%	3.82%	3.59%	1.71%	1.99%	2.27%

Frequently Asked Questions

Can I hold both COSZX and ARTKX in my portfolio?

COSZX and ARTKX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COSZX or ARTKX?

ARTKX has higher volatility (4.38%) compared to COSZX (3.56%). In terms of maximum drawdown, COSZX dropped -63.37% vs ARTKX's -51.90%.

Which has better risk-adjusted returns?

COSZX currently has the higher Sharpe Ratio (1.98 vs 1.67), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.