OSCBX vs. COSZX

Last updated Jun 4, 2026

OSCBX (Overseas SMA Completion Portfolio) and COSZX (Columbia Overseas Value Fund) are both Foreign Large Cap Equities funds from Columbia. Over the past 5 years, OSCBX returned 8.43%/yr vs 11.46%/yr for COSZX. Their correlation of 0.94 suggests significant overlap in exposure. OSCBX charges 0.00%/yr vs 0.90%/yr for COSZX.

Performance

OSCBX vs. COSZX - Performance Comparison

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

Returns By Period

In the year-to-date period, OSCBX achieves a 2.47% return, which is significantly lower than COSZX's 7.46% return.

OSCBX

• 1D: 0.65%
• 1M: -0.59%
• YTD: 2.47%
• 6M: 4.46%
• 1Y: 22.81%
• 3Y*: 20.38%
• 5Y*: 8.43%
• 10Y*: —

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%

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

OSCBX vs. COSZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
OSCBX Overseas SMA Completion Portfolio	2.47%	47.21%	6.06%	15.00%	-11.51%	6.10%	7.40%	11.03%
COSZX Columbia Overseas Value Fund	7.46%	45.80%	4.70%	16.05%	-5.99%	10.78%	-0.07%	9.77%

Correlation

The correlation between OSCBX and COSZX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Sep 13, 2019	0.94

The correlation between OSCBX and COSZX has been stable across timeframes, ranging from 0.91 to 0.94 - a consistent structural relationship.

Return for Risk

OSCBX vs. COSZX — Risk / Return Rank

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

OSCBX

OSCBX Risk / Return Rank: 22
OSCBX Sharpe Ratio Rank: 25
OSCBX Sortino Ratio Rank: 25
OSCBX Omega Ratio Rank: 26
OSCBX Calmar Ratio Rank: 17
OSCBX Martin Ratio Rank: 18

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

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.

OSCBX vs. COSZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Overseas SMA Completion Portfolio (OSCBX) and Columbia Overseas Value Fund (COSZX). 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.

	OSCBX	COSZX	Difference
Sharpe ratio Return per unit of total volatility	1.44	1.98	-0.54
Sortino ratio Return per unit of downside risk	2.08	2.74	-0.66
Omega ratio Gain probability vs. loss probability	1.27	1.36	-0.10
Calmar ratio Return relative to maximum drawdown	1.49	2.30	-0.82
Martin ratio Return relative to average drawdown	4.91	8.12	-3.21
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OSCBX vs. COSZX - Sharpe Ratio Comparison

The current OSCBX Sharpe Ratio is 1.44, which is comparable to the COSZX Sharpe Ratio of 1.98. The chart below compares the historical Sharpe Ratios of OSCBX and COSZX, 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

	OSCBX	COSZX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.44	1.98	-0.54
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.73	-0.20
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.59	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.21	+0.38

Drawdowns

OSCBX vs. COSZX - Drawdown Comparison

The maximum OSCBX drawdown since its inception was -39.50%, smaller than the maximum COSZX drawdown of -63.37%. Use the drawdown chart below to compare losses from any high point for OSCBX and COSZX.

Drawdown Indicators

	OSCBX	COSZX	Difference
Max Drawdown Largest peak-to-trough decline	-39.50%	-63.37%	+23.87%
Max Drawdown (1Y) Largest decline over 1 year	-14.34%	-11.76%	-2.58%
Max Drawdown (3Y) Largest decline over 3 years	-14.34%	-13.34%	-1.00%
Max Drawdown (5Y) Largest decline over 5 years	-32.93%	-25.77%	-7.16%
Max Drawdown (10Y) Largest decline over 10 years	—	-43.40%	—
Current Drawdown Current decline from peak	-7.25%	-4.51%	-2.74%
Average Drawdown Average peak-to-trough decline	-9.29%	-17.90%	+8.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.35%	3.33%	+1.02%

Volatility

OSCBX vs. COSZX - Volatility Comparison

Overseas SMA Completion Portfolio (OSCBX) has a higher volatility of 4.13% compared to Columbia Overseas Value Fund (COSZX) at 3.56%. This indicates that OSCBX's price experiences larger fluctuations and is considered to be riskier than COSZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OSCBX	COSZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.13%	3.56%	+0.57%
Volatility (6M) Calculated over the trailing 6-month period	11.90%	10.95%	+0.95%
Volatility (1Y) Calculated over the trailing 1-year period	14.88%	13.77%	+1.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.22%	15.84%	+0.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.10%	17.45%	+1.65%

OSCBX vs. COSZX - Expense Ratio Comparison

OSCBX has a 0.00% expense ratio, which is lower than COSZX's 0.90% expense ratio.

Dividends

OSCBX vs. COSZX - Dividend Comparison

OSCBX's dividend yield for the trailing twelve months is around 2.82%, less than COSZX's 7.36% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
OSCBX Overseas SMA Completion Portfolio	2.82%	2.89%	6.48%	5.66%	3.86%	6.86%	1.42%	1.37%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both OSCBX and COSZX in my portfolio?

With a correlation of 0.91, OSCBX and COSZX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, OSCBX or COSZX?

OSCBX has higher volatility (4.13%) compared to COSZX (3.56%). In terms of maximum drawdown, OSCBX dropped -39.50% vs COSZX's -63.37%.

Which has better risk-adjusted returns?

COSZX currently has the higher Sharpe Ratio (1.98 vs 1.44), 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.