COSZX vs. SEMAX

Last updated Jun 23, 2026

COSZX (Columbia Overseas Value Fund) and SEMAX (Columbia Massachusetts Intermediate Municipal Bond Fund) are both mutual funds - COSZX is a Foreign Large Cap Equities fund managed by Columbia, while SEMAX is a Municipal Bonds fund managed by Columbia. Over the past 10 years, COSZX returned 10.27%/yr vs 1.60%/yr for SEMAX. At a correlation of -0.11, they often move in opposite directions. COSZX charges 0.90%/yr vs 0.54%/yr for SEMAX.

Performance

COSZX vs. SEMAX - Performance Comparison

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

Returns By Period

In the year-to-date period, COSZX achieves a 6.13% return, which is significantly higher than SEMAX's 1.17% return. Over the past 10 years, COSZX has outperformed SEMAX with an annualized return of 10.27%, while SEMAX has yielded a comparatively lower 1.60% annualized return.

COSZX

• 1D: -0.07%
• 1M: -1.31%
• YTD: 6.13%
• 6M: 6.05%
• 1Y: 26.38%
• 3Y*: 20.06%
• 5Y*: 12.15%
• 10Y*: 10.27%

SEMAX

• 1D: 0.00%
• 1M: 1.07%
• YTD: 1.17%
• 6M: 1.51%
• 1Y: 5.46%
• 3Y*: 3.66%
• 5Y*: 0.87%
• 10Y*: 1.60%

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

COSZX vs. SEMAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COSZX Columbia Overseas Value Fund	6.13%	45.80%	4.70%	16.05%	-5.99%	10.78%	-0.07%	22.37%	-16.70%	27.82%
SEMAX Columbia Massachusetts Intermediate Municipal Bond Fund	1.17%	5.25%	1.71%	4.23%	-7.73%	0.98%	3.59%	6.68%	0.46%	3.77%

Correlation

The correlation between COSZX and SEMAX is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.09
Correlation (10Y) Calculated over the trailing 10-year period	-0.01
Correlation (All Time) Calculated using the full available price history since Apr 1, 2008	-0.11

The correlation between COSZX and SEMAX shifts across timeframes, from -0.11 (all time) to 0.26 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

COSZX vs. SEMAX — Risk / Return Rank

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

COSZX

COSZX Risk / Return Rank: 42
COSZX Sharpe Ratio Rank: 47
COSZX Sortino Ratio Rank: 45
COSZX Omega Ratio Rank: 46
COSZX Calmar Ratio Rank: 38
COSZX Martin Ratio Rank: 34

SEMAX

SEMAX Risk / Return Rank: 73
SEMAX Sharpe Ratio Rank: 92
SEMAX Sortino Ratio Rank: 94
SEMAX Omega Ratio Rank: 96
SEMAX Calmar Ratio Rank: 46
SEMAX Martin Ratio Rank: 39

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. SEMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Overseas Value Fund (COSZX) and Columbia Massachusetts Intermediate Municipal Bond Fund (SEMAX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	COSZX	SEMAX	Difference
Sharpe ratio: Return per unit of total volatility	1.86	2.87	-1.01
Sortino ratio: Return per unit of downside risk	2.59	4.52	-1.92
Omega ratio: Gain probability vs. loss probability	1.34	1.82	-0.48
Calmar ratio: Return relative to maximum drawdown	2.22	2.46	-0.24
Martin ratio: Return relative to average drawdown	7.29	7.98	-0.69

COSZX vs. SEMAX - Sharpe Ratio Comparison

The current COSZX Sharpe Ratio is 1.86, which is lower than the SEMAX Sharpe Ratio of 2.87. The chart below compares the historical Sharpe Ratios of COSZX and SEMAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

COSZX vs. SEMAX - Drawdown Comparison

The maximum COSZX drawdown since its inception was -63.37%, which is greater than SEMAX's maximum drawdown of -11.75%. Use the drawdown chart below to compare losses from any high point for COSZX and SEMAX.

Drawdown Indicators

	COSZX	SEMAX	Difference
Max Drawdown Largest peak-to-trough decline	-63.37%	-11.75%	-51.62%
Max Drawdown (1Y) Largest decline over 1 year	-11.76%	-2.23%	-9.53%
Max Drawdown (3Y) Largest decline over 3 years	-13.34%	-3.46%	-9.88%
Max Drawdown (5Y) Largest decline over 5 years	-25.77%	-11.75%	-14.02%
Max Drawdown (10Y) Largest decline over 10 years	-43.40%	-11.75%	-31.65%
Current Drawdown Current decline from peak	-5.69%	-0.60%	-5.09%
Average Drawdown Average peak-to-trough decline	-17.87%	-1.66%	-16.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.58%	0.69%	+2.89%

Volatility

COSZX vs. SEMAX - Volatility Comparison

Columbia Overseas Value Fund (COSZX) has a higher volatility of 4.16% compared to Columbia Massachusetts Intermediate Municipal Bond Fund (SEMAX) at 0.51%. This indicates that COSZX's price experiences larger fluctuations and is considered to be riskier than SEMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COSZX	SEMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.16%	0.51%	+3.65%
Volatility (6M) Calculated over the trailing 6-month period	11.37%	1.51%	+9.86%
Volatility (1Y) Calculated over the trailing 1-year period	14.02%	1.91%	+12.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.87%	2.83%	+13.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.43%	3.33%	+14.10%

COSZX vs. SEMAX - Expense Ratio Comparison

COSZX has a 0.90% expense ratio, which is higher than SEMAX's 0.54% expense ratio.

Dividends

COSZX vs. SEMAX - Dividend Comparison

COSZX's dividend yield for the trailing twelve months is around 7.46%, more than SEMAX's 2.80% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COSZX Columbia Overseas Value Fund	7.46%	7.91%	5.38%	3.97%	1.88%	3.59%	1.69%	3.82%	3.59%	1.71%	1.99%	2.27%
SEMAX Columbia Massachusetts Intermediate Municipal Bond Fund	2.80%	3.71%	2.74%	2.45%	2.31%	2.40%	2.38%	3.19%	3.05%	2.95%	3.80%	3.17%

Frequently Asked Questions

Can I hold both COSZX and SEMAX in my portfolio?

COSZX and SEMAX have a correlation of 0.26, 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 SEMAX?

COSZX has higher volatility (4.16%) compared to SEMAX (0.51%). In terms of maximum drawdown, COSZX dropped -63.37% vs SEMAX's -11.75%.

Which has better risk-adjusted returns?

SEMAX currently has the higher Sharpe Ratio (2.87 vs 1.86), 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.