COSTX vs. CTCAX

Last updated Jun 23, 2026

COSTX (Columbia Overseas Core Fund Institutional 2 Class) and CTCAX (Columbia Global Technology Growth Fund Class A) are both mutual funds - COSTX is a Foreign Large Cap Equities fund actively managed by Columbia, while CTCAX is a Technology Equities fund managed by Columbia. Over the past 5 years, COSTX returned 8.84%/yr vs 19.84%/yr for CTCAX. A 0.66 correlation means they provide meaningful diversification when combined. COSTX charges 0.84%/yr vs 1.18%/yr for CTCAX.

Performance

COSTX vs. CTCAX - Performance Comparison

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

Returns By Period

In the year-to-date period, COSTX achieves a 7.43% return, which is significantly lower than CTCAX's 30.84% return.

COSTX

• 1D: 0.52%
• 1M: 0.07%
• YTD: 7.43%
• 6M: 7.43%
• 1Y: 24.61%
• 3Y*: 17.43%
• 5Y*: 8.84%
• 10Y*: —

CTCAX

• 1D: 3.52%
• 1M: 7.73%
• YTD: 30.84%
• 6M: 30.74%
• 1Y: 58.79%
• 3Y*: 34.19%
• 5Y*: 19.84%
• 10Y*: 24.78%

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

COSTX vs. CTCAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
COSTX Columbia Overseas Core Fund Institutional 2 Class	7.43%	38.35%	3.48%	15.63%	-14.91%	9.68%	8.74%	25.51%	-17.10%
CTCAX Columbia Global Technology Growth Fund Class A	30.84%	24.78%	31.39%	56.46%	-34.81%	22.73%	49.46%	43.91%	-13.83%

Correlation

The correlation between COSTX and CTCAX is 0.64, 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	0.64
Correlation (3Y) Calculated over the trailing 3-year period	0.58
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (All Time) Calculated using the full available price history since Mar 13, 2018	0.66

The correlation between COSTX and CTCAX has been stable across timeframes, ranging from 0.58 to 0.66 - a consistent structural relationship.

Return for Risk

COSTX vs. CTCAX — Risk / Return Rank

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

COSTX

COSTX Risk / Return Rank: 35
COSTX Sharpe Ratio Rank: 36
COSTX Sortino Ratio Rank: 34
COSTX Omega Ratio Rank: 36
COSTX Calmar Ratio Rank: 32
COSTX Martin Ratio Rank: 35

CTCAX

CTCAX Risk / Return Rank: 76
CTCAX Sharpe Ratio Rank: 82
CTCAX Sortino Ratio Rank: 64
CTCAX Omega Ratio Rank: 66
CTCAX Calmar Ratio Rank: 87
CTCAX Martin Ratio Rank: 82

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. CTCAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Overseas Core Fund Institutional 2 Class (COSTX) and Columbia Global Technology Growth Fund Class A (CTCAX). 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	CTCAX	Difference
Sharpe ratio: Return per unit of total volatility	1.61	2.47	-0.86
Sortino ratio: Return per unit of downside risk	2.27	3.04	-0.77
Omega ratio: Gain probability vs. loss probability	1.30	1.41	-0.11
Calmar ratio: Return relative to maximum drawdown	2.04	4.01	-1.98
Martin ratio: Return relative to average drawdown	7.26	14.29	-7.03

COSTX vs. CTCAX - Sharpe Ratio Comparison

The current COSTX Sharpe Ratio is 1.61, which is lower than the CTCAX Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of COSTX and CTCAX, 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. CTCAX - Drawdown Comparison

The maximum COSTX drawdown since its inception was -36.74%, smaller than the maximum CTCAX drawdown of -61.04%. Use the drawdown chart below to compare losses from any high point for COSTX and CTCAX.

Drawdown Indicators

	COSTX	CTCAX	Difference
Max Drawdown Largest peak-to-trough decline	-36.74%	-61.04%	+24.30%
Max Drawdown (1Y) Largest decline over 1 year	-11.82%	-14.43%	+2.61%
Max Drawdown (3Y) Largest decline over 3 years	-13.42%	-26.67%	+13.25%
Max Drawdown (5Y) Largest decline over 5 years	-31.32%	-39.55%	+8.23%
Max Drawdown (10Y) Largest decline over 10 years	—	-39.55%	—
Current Drawdown Current decline from peak	-3.17%	-0.92%	-2.25%
Average Drawdown Average peak-to-trough decline	-7.53%	-10.67%	+3.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.31%	4.05%	-0.74%

Volatility

COSTX vs. CTCAX - Volatility Comparison

The current volatility for Columbia Overseas Core Fund Institutional 2 Class (COSTX) is 4.83%, while Columbia Global Technology Growth Fund Class A (CTCAX) has a volatility of 11.73%. This indicates that COSTX experiences smaller price fluctuations and is considered to be less risky than CTCAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COSTX	CTCAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.83%	11.73%	-6.90%
Volatility (6M) Calculated over the trailing 6-month period	12.46%	19.53%	-7.07%
Volatility (1Y) Calculated over the trailing 1-year period	14.93%	23.42%	-8.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.89%	26.37%	-10.48%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.40%	25.05%	-7.65%

COSTX vs. CTCAX - Expense Ratio Comparison

COSTX has a 0.84% expense ratio, which is lower than CTCAX's 1.18% expense ratio.

Dividends

COSTX vs. CTCAX - Dividend Comparison

COSTX's dividend yield for the trailing twelve months is around 8.85%, more than CTCAX's 2.51% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COSTX Columbia Overseas Core Fund Institutional 2 Class	8.85%	9.61%	4.31%	4.71%	1.46%	8.23%	2.34%	3.91%	1.11%	0.00%	0.00%	0.00%
CTCAX Columbia Global Technology Growth Fund Class A	2.51%	3.29%	1.08%	2.36%	3.53%	4.15%	0.91%	2.55%	5.82%	3.52%	0.36%	1.80%

Frequently Asked Questions

Can I hold both COSTX and CTCAX in my portfolio?

COSTX and CTCAX have a correlation of 0.64, 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 CTCAX?

CTCAX has higher volatility (11.73%) compared to COSTX (4.83%). In terms of maximum drawdown, COSTX dropped -36.74% vs CTCAX's -61.04%.

Which has better risk-adjusted returns?

CTCAX currently has the higher Sharpe Ratio (2.47 vs 1.61), 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.