VCSLX vs. VCSOX

Last updated Jun 19, 2026

VCSLX (VALIC Company I Small Cap Index Fund) and VCSOX (VALIC Company I International Socially Responsible Fund) are both mutual funds - VCSLX is a Small Cap Blend Equities fund managed by VALIC, while VCSOX is a Foreign Large Cap Equities fund managed by VALIC. Over the past 10 years, VCSLX returned 9.84%/yr vs 9.78%/yr for VCSOX. A 0.78 correlation means they provide meaningful diversification when combined. VCSLX charges 0.36%/yr vs 0.64%/yr for VCSOX.

Performance

VCSLX vs. VCSOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in VALIC Company I Small Cap Index Fund (VCSLX) and VALIC Company I International Socially Responsible Fund (VCSOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VCSLX achieves a 17.90% return, which is significantly higher than VCSOX's 10.32% return. Both investments have delivered pretty close results over the past 10 years, with VCSLX having a 9.84% annualized return and VCSOX not far behind at 9.78%.

VCSLX

• 1D: -0.71%
• 1M: 6.29%
• YTD: 17.90%
• 6M: 16.71%
• 1Y: 39.20%
• 3Y*: 15.14%
• 5Y*: 5.47%
• 10Y*: 9.84%

VCSOX

• 1D: -0.42%
• 1M: 3.39%
• YTD: 10.32%
• 6M: 11.48%
• 1Y: 22.12%
• 3Y*: 13.32%
• 5Y*: 7.45%
• 10Y*: 9.78%

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

VCSLX vs. VCSOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VCSLX VALIC Company I Small Cap Index Fund	17.90%	7.00%	11.22%	15.99%	-20.41%	14.55%	20.14%	25.04%	-16.08%	14.40%
VCSOX VALIC Company I International Socially Responsible Fund	10.32%	22.82%	2.99%	18.28%	-16.24%	12.54%	8.52%	25.96%	-8.44%	22.72%

Correlation

The correlation between VCSLX and VCSOX is 0.62, 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	0.62
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.67
Correlation (10Y) Calculated over the trailing 10-year period	0.70
Correlation (All Time) Calculated using the full available price history since Dec 28, 1995	0.78

The correlation between VCSLX and VCSOX shifts across timeframes, from 0.62 (1 year) to 0.78 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VCSLX vs. VCSOX — Risk / Return Rank

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

VCSLX

VCSLX Risk / Return Rank: 64
VCSLX Sharpe Ratio Rank: 60
VCSLX Sortino Ratio Rank: 57
VCSLX Omega Ratio Rank: 47
VCSLX Calmar Ratio Rank: 83
VCSLX Martin Ratio Rank: 74

VCSOX

VCSOX Risk / Return Rank: 34
VCSOX Sharpe Ratio Rank: 34
VCSOX Sortino Ratio Rank: 36
VCSOX Omega Ratio Rank: 34
VCSOX Calmar Ratio Rank: 31
VCSOX Martin Ratio Rank: 34

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.

VCSLX vs. VCSOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for VALIC Company I Small Cap Index Fund (VCSLX) and VALIC Company I International Socially Responsible Fund (VCSOX). 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.

	VCSLX	VCSOX	Difference
Sharpe ratio: Return per unit of total volatility	2.05	1.52	+0.53
Sortino ratio: Return per unit of downside risk	2.82	2.25	+0.57
Omega ratio: Gain probability vs. loss probability	1.34	1.28	+0.06
Calmar ratio: Return relative to maximum drawdown	3.60	1.91	+1.69
Martin ratio: Return relative to average drawdown	12.72	7.04	+5.68

VCSLX vs. VCSOX - Sharpe Ratio Comparison

The current VCSLX Sharpe Ratio is 2.05, which is higher than the VCSOX Sharpe Ratio of 1.52. The chart below compares the historical Sharpe Ratios of VCSLX and VCSOX, 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

VCSLX vs. VCSOX - Drawdown Comparison

The maximum VCSLX drawdown since its inception was -67.69%, smaller than the maximum VCSOX drawdown of -71.49%. Use the drawdown chart below to compare losses from any high point for VCSLX and VCSOX.

Drawdown Indicators

	VCSLX	VCSOX	Difference
Max Drawdown Largest peak-to-trough decline	-67.69%	-71.49%	+3.80%
Max Drawdown (1Y) Largest decline over 1 year	-11.16%	-11.85%	+0.69%
Max Drawdown (3Y) Largest decline over 3 years	-30.96%	-18.48%	-12.48%
Max Drawdown (5Y) Largest decline over 5 years	-31.83%	-31.15%	-0.68%
Max Drawdown (10Y) Largest decline over 10 years	-41.78%	-33.08%	-8.70%
Current Drawdown Current decline from peak	-1.61%	-0.57%	-1.04%
Average Drawdown Average peak-to-trough decline	-18.35%	-20.53%	+2.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.15%	3.21%	-0.06%

Volatility

VCSLX vs. VCSOX - Volatility Comparison

VALIC Company I Small Cap Index Fund (VCSLX) has a higher volatility of 6.65% compared to VALIC Company I International Socially Responsible Fund (VCSOX) at 4.90%. This indicates that VCSLX's price experiences larger fluctuations and is considered to be riskier than VCSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VCSLX	VCSOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.65%	4.90%	+1.75%
Volatility (6M) Calculated over the trailing 6-month period	14.28%	12.61%	+1.67%
Volatility (1Y) Calculated over the trailing 1-year period	19.64%	14.95%	+4.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.82%	16.35%	+6.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.64%	16.55%	+7.09%

VCSLX vs. VCSOX - Expense Ratio Comparison

VCSLX has a 0.36% expense ratio, which is lower than VCSOX's 0.64% expense ratio.

Dividends

VCSLX vs. VCSOX - Dividend Comparison

VCSLX's dividend yield for the trailing twelve months is around 5.18%, less than VCSOX's 5.72% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
VCSLX VALIC Company I Small Cap Index Fund	5.18%	0.00%	1.17%	26.50%	13.32%	5.39%	13.29%	9.37%	1.18%	5.80%
VCSOX VALIC Company I International Socially Responsible Fund	5.72%	0.00%	1.78%	3.03%	8.42%	22.36%	4.64%	1.62%	1.83%	1.48%

Frequently Asked Questions

Can I hold both VCSLX and VCSOX in my portfolio?

VCSLX and VCSOX have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VCSLX or VCSOX?

VCSLX has higher volatility (6.65%) compared to VCSOX (4.90%). In terms of maximum drawdown, VCSLX dropped -67.69% vs VCSOX's -71.49%.

Which has better risk-adjusted returns?

VCSLX currently has the higher Sharpe Ratio (2.05 vs 1.52), 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.