CCOYX vs. WSTAX

Last updated Jun 4, 2026

CCOYX (Columbia Seligman Technology and Information Fund Institutional 3 Class) and WSTAX (Nomura Science and Technology Fund Class A) are both Technology Equities funds. Over the past 5 years, CCOYX returned 27.23%/yr vs 25.51%/yr for WSTAX. Their correlation of 0.93 suggests significant overlap in exposure. CCOYX charges 0.82%/yr vs 1.17%/yr for WSTAX.

Performance

CCOYX vs. WSTAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Columbia Seligman Technology and Information Fund Institutional 3 Class (CCOYX) and Nomura Science and Technology Fund Class A (WSTAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CCOYX achieves a 58.87% return, which is significantly higher than WSTAX's 41.80% return.

CCOYX

• 1D: 3.67%
• 1M: 15.59%
• YTD: 58.87%
• 6M: 55.61%
• 1Y: 127.06%
• 3Y*: 48.12%
• 5Y*: 27.23%
• 10Y*: —

WSTAX

• 1D: 1.03%
• 1M: 15.75%
• YTD: 41.80%
• 6M: 42.57%
• 1Y: 76.95%
• 3Y*: 52.21%
• 5Y*: 25.51%
• 10Y*: 24.74%

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

CCOYX vs. WSTAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CCOYX Columbia Seligman Technology and Information Fund Institutional 3 Class	58.87%	37.79%	27.11%	44.77%	-30.92%	39.45%	44.92%	54.68%	-7.78%	19.33%
WSTAX Nomura Science and Technology Fund Class A	41.80%	33.91%	59.64%	40.44%	-32.50%	14.19%	36.12%	50.35%	-5.23%	22.04%

Correlation

The correlation between CCOYX and WSTAX 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 Mar 2, 2017	0.93

The correlation between CCOYX and WSTAX has been stable across timeframes, ranging from 0.91 to 0.93 - a consistent structural relationship.

Return for Risk

CCOYX vs. WSTAX — Risk / Return Rank

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

CCOYX

CCOYX Risk / Return Rank: 97
CCOYX Sharpe Ratio Rank: 99
CCOYX Sortino Ratio Rank: 96
CCOYX Omega Ratio Rank: 93
CCOYX Calmar Ratio Rank: 99
CCOYX Martin Ratio Rank: 99

WSTAX

WSTAX Risk / Return Rank: 87
WSTAX Sharpe Ratio Rank: 95
WSTAX Sortino Ratio Rank: 82
WSTAX Omega Ratio Rank: 81
WSTAX Calmar Ratio Rank: 91
WSTAX Martin Ratio Rank: 88

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.

CCOYX vs. WSTAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Seligman Technology and Information Fund Institutional 3 Class (CCOYX) and Nomura Science and Technology Fund Class A (WSTAX). 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.

	CCOYX	WSTAX	Difference
Sharpe ratio: Return per unit of total volatility	5.06	3.34	+1.72
Sortino ratio: Return per unit of downside risk	5.25	3.88	+1.37
Omega ratio: Gain probability vs. loss probability	1.71	1.53	+0.18
Calmar ratio: Return relative to maximum drawdown	10.72	4.75	+5.97
Martin ratio: Return relative to average drawdown	41.63	17.39	+24.24
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CCOYX vs. WSTAX - Sharpe Ratio Comparison

The current CCOYX Sharpe Ratio is 5.06, which is higher than the WSTAX Sharpe Ratio of 3.34. The chart below compares the historical Sharpe Ratios of CCOYX and WSTAX, 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

	CCOYX	WSTAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.06	3.34	+1.72
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.04	0.69	+0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.81	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.04	0.53	+0.51

Drawdowns

CCOYX vs. WSTAX - Drawdown Comparison

The maximum CCOYX drawdown since its inception was -37.16%, smaller than the maximum WSTAX drawdown of -55.39%. Use the drawdown chart below to compare losses from any high point for CCOYX and WSTAX.

Drawdown Indicators

	CCOYX	WSTAX	Difference
Max Drawdown Largest peak-to-trough decline	-37.16%	-55.39%	+18.23%
Max Drawdown (1Y) Largest decline over 1 year	-12.31%	-16.73%	+4.42%
Max Drawdown (3Y) Largest decline over 3 years	-29.08%	-27.35%	-1.73%
Max Drawdown (5Y) Largest decline over 5 years	-37.16%	-55.39%	+18.23%
Max Drawdown (10Y) Largest decline over 10 years	—	-55.39%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-7.69%	-14.95%	+7.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.17%	4.56%	-1.39%

Volatility

CCOYX vs. WSTAX - Volatility Comparison

Columbia Seligman Technology and Information Fund Institutional 3 Class (CCOYX) and Nomura Science and Technology Fund Class A (WSTAX) have volatilities of 7.25% and 7.17%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CCOYX	WSTAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.25%	7.17%	+0.08%
Volatility (6M) Calculated over the trailing 6-month period	20.07%	18.78%	+1.29%
Volatility (1Y) Calculated over the trailing 1-year period	26.09%	23.79%	+2.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.21%	36.95%	-10.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.76%	30.71%	-3.95%

CCOYX vs. WSTAX - Expense Ratio Comparison

CCOYX has a 0.82% expense ratio, which is lower than WSTAX's 1.17% expense ratio.

Dividends

CCOYX vs. WSTAX - Dividend Comparison

CCOYX's dividend yield for the trailing twelve months is around 5.09%, less than WSTAX's 12.92% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CCOYX Columbia Seligman Technology and Information Fund Institutional 3 Class	5.09%	8.08%	12.32%	4.60%	8.17%	10.62%	9.52%	10.61%	11.42%	10.60%	0.00%	0.00%
WSTAX Nomura Science and Technology Fund Class A	12.92%	18.32%	36.08%	11.62%	33.72%	42.99%	8.89%	11.48%	13.99%	6.95%	0.00%	2.50%

Frequently Asked Questions

Can I hold both CCOYX and WSTAX in my portfolio?

With a correlation of 0.91, CCOYX and WSTAX 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, CCOYX or WSTAX?

CCOYX has higher volatility (7.25%) compared to WSTAX (7.17%). In terms of maximum drawdown, CCOYX dropped -37.16% vs WSTAX's -55.39%.

Which has better risk-adjusted returns?

CCOYX currently has the higher Sharpe Ratio (5.06 vs 3.34), 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.