COSTX vs. FAERX

Last updated Jul 22, 2026

COSTX (Columbia Overseas Core Fund Institutional 2 Class) and FAERX (Fidelity Advisor Overseas Fund Class M) are both Foreign Large Cap Equities funds. Over the past 5 years, COSTX returned 8.19%/yr vs 2.85%/yr for FAERX. Their correlation of 0.86 suggests significant overlap in exposure. COSTX charges 0.84%/yr vs 1.65%/yr for FAERX.

Performance

COSTX vs. FAERX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Columbia Overseas Core Fund Institutional 2 Class (COSTX) and Fidelity Advisor Overseas Fund Class M (FAERX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

COSTX

• 1D: -0.57%
• 1M: -2.66%
• 6M: 1.34%
• YTD: 4.58%
• 1Y: 15.35%
• 3Y*: 16.23%
• 5Y*: 8.19%
• 10Y*: —
• ALL TIME*: 7.49%

FAERX

• 1D: 0.00%
• 1M: 0.00%
• 6M: 0.00%
• YTD: 0.00%
• 1Y: -3.25%
• 3Y*: 7.55%
• 5Y*: 2.85%
• 10Y*: 7.27%
• ALL TIME*: 5.58%

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

COSTX vs. FAERX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
COSTX Columbia Overseas Core Fund Institutional 2 Class	4.58%	38.35%	3.48%	15.63%	-14.91%	9.68%	8.74%	25.51%	-17.10%
FAERX Fidelity Advisor Overseas Fund Class M	0.00%	14.70%	4.40%	19.78%	-24.77%	18.63%	14.43%	27.14%	-15.90%

Correlation

The correlation between COSTX and FAERX is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.75
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (All Time) Calculated using the full available price history since Mar 13, 2018	0.86

Over the past year, the correlation between COSTX and FAERX has dropped to 0.48 - well below their long-term average of 0.86, suggesting their price drivers have been diverging.

Return for Risk

COSTX vs. FAERX — Risk / Return Rank

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

COSTX

COSTX Risk / Return Rank: 27
COSTX Sharpe Ratio Rank: 27
COSTX Sortino Ratio Rank: 27
COSTX Omega Ratio Rank: 29
COSTX Calmar Ratio Rank: 25
COSTX Martin Ratio Rank: 27

FAERX

FAERX Risk / Return Rank: 1
FAERX Sharpe Ratio Rank: 1
FAERX Sortino Ratio Rank: 1
FAERX Omega Ratio Rank: 1
FAERX Calmar Ratio Rank: 1
FAERX Martin Ratio Rank: 1

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.

COSTX vs. FAERX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Overseas Core Fund Institutional 2 Class (COSTX) and Fidelity Advisor Overseas Fund Class M (FAERX). 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.

	COSTX	FAERX	Difference
Sharpe ratio: Return per unit of total volatility	1.07	-0.44	+1.51
Sortino ratio: Return per unit of downside risk	1.57	-0.55	+2.12
Omega ratio: Gain probability vs. loss probability	1.20	0.91	+0.29
Calmar ratio: Return relative to maximum drawdown	1.38	-0.49	+1.87
Martin ratio: Return relative to average drawdown	4.54	-0.76	+5.30

COSTX vs. FAERX - Sharpe Ratio Comparison

The current COSTX Sharpe Ratio is 1.07, which is higher than the FAERX Sharpe Ratio of -0.44. The chart below compares the historical Sharpe Ratios of COSTX and FAERX, 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

COSTX vs. FAERX - Drawdown Comparison

The maximum COSTX drawdown since its inception was -36.74%, smaller than the maximum FAERX drawdown of -60.14%. Use the drawdown chart below to compare losses from any high point for COSTX and FAERX.

Drawdown Indicators

	COSTX	FAERX	Difference
Max Drawdown Largest peak-to-trough decline	-36.74%	-60.14%	+23.40%
Max Drawdown (1Y) Largest decline over 1 year	-11.82%	-7.29%	-4.53%
Max Drawdown (3Y) Largest decline over 3 years	-13.42%	-14.00%	+0.58%
Max Drawdown (5Y) Largest decline over 5 years	-31.32%	-36.62%	+5.30%
Max Drawdown (10Y) Largest decline over 10 years	—	-36.62%	—
Current Drawdown Current decline from peak	-5.74%	-5.89%	+0.15%
Average Drawdown Average peak-to-trough decline	-7.50%	-14.34%	+6.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.57%	4.40%	-0.83%

Volatility

COSTX vs. FAERX - Volatility Comparison

Columbia Overseas Core Fund Institutional 2 Class (COSTX) has a higher volatility of 4.19% compared to Fidelity Advisor Overseas Fund Class M (FAERX) at 0.00%. This indicates that COSTX's price experiences larger fluctuations and is considered to be riskier than FAERX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COSTX	FAERX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.19%	0.00%	+4.19%
Volatility (6M) Calculated over the trailing 6-month period	12.87%	0.00%	+12.87%
Volatility (1Y) Calculated over the trailing 1-year period	15.26%	8.17%	+7.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.91%	16.69%	-0.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.38%	16.29%	+1.09%

COSTX vs. FAERX - Expense Ratio Comparison

COSTX has a 0.84% expense ratio, which is lower than FAERX's 1.65% expense ratio.

Dividends

COSTX vs. FAERX - Dividend Comparison

COSTX's dividend yield for the trailing twelve months is around 16.99%, more than FAERX's 7.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COSTX Columbia Overseas Core Fund Institutional 2 Class	16.99%	9.61%	4.31%	4.71%	1.46%	8.23%	2.34%	3.91%	1.11%	0.00%	0.00%	0.00%
FAERX Fidelity Advisor Overseas Fund Class M	7.94%	7.94%	0.96%	0.51%	0.12%	2.07%	0.00%	1.15%	4.25%	3.35%	0.80%	0.09%

Frequently Asked Questions

Can I hold both COSTX and FAERX in my portfolio?

COSTX and FAERX have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COSTX or FAERX?

COSTX has higher volatility (4.19%) compared to FAERX (0.00%). In terms of maximum drawdown, COSTX dropped -36.74% vs FAERX's -60.14%.

Which has better risk-adjusted returns?

COSTX currently has the higher Sharpe Ratio (1.07 vs -0.44), 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.