VCSOX vs. VSTIX

Last updated Jun 5, 2026

VCSOX (VALIC Company I International Socially Responsible Fund) and VSTIX (VALIC Company I Stock Index Fund) are both mutual funds - VCSOX is a Foreign Large Cap Equities fund managed by VALIC, while VSTIX is a Large Cap Blend Equities fund managed by VALIC. Over the past 10 years, VCSOX returned 9.40%/yr vs 14.57%/yr for VSTIX. Their correlation of 0.91 suggests significant overlap in exposure. VCSOX charges 0.64%/yr vs 0.29%/yr for VSTIX.

Performance

VCSOX vs. VSTIX - Performance Comparison

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

Returns By Period

In the year-to-date period, VCSOX achieves a 9.40% return, which is significantly lower than VSTIX's 10.70% return. Over the past 10 years, VCSOX has underperformed VSTIX with an annualized return of 9.40%, while VSTIX has yielded a comparatively higher 14.57% annualized return.

VCSOX

• 1D: -0.42%
• 1M: 2.49%
• YTD: 9.40%
• 6M: 10.84%
• 1Y: 19.81%
• 3Y*: 14.14%
• 5Y*: 6.70%
• 10Y*: 9.40%

VSTIX

• 1D: -0.73%
• 1M: 4.15%
• YTD: 10.70%
• 6M: 10.60%
• 1Y: 27.67%
• 3Y*: 20.95%
• 5Y*: 12.98%
• 10Y*: 14.57%

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

VCSOX vs. VSTIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VCSOX VALIC Company I International Socially Responsible Fund	9.40%	22.82%	2.99%	18.28%	-16.24%	12.54%	8.52%	25.96%	-8.44%	22.72%
VSTIX VALIC Company I Stock Index Fund	10.70%	14.28%	24.76%	25.62%	-18.11%	28.40%	18.55%	31.05%	-8.09%	21.46%

Correlation

The correlation between VCSOX and VSTIX is 0.72, 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	0.72
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (10Y) Calculated over the trailing 10-year period	0.77
Correlation (All Time) Calculated using the full available price history since Jan 3, 1996	0.91

The correlation between VCSOX and VSTIX shifts across timeframes, from 0.68 (3 years) to 0.91 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VCSOX vs. VSTIX — Risk / Return Rank

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

VCSOX

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

VSTIX

VSTIX Risk / Return Rank: 69
VSTIX Sharpe Ratio Rank: 71
VSTIX Sortino Ratio Rank: 67
VSTIX Omega Ratio Rank: 64
VSTIX Calmar Ratio Rank: 67
VSTIX Martin Ratio Rank: 79

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.

VCSOX vs. VSTIX - Risk-Adjusted Trends Comparison

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

	VCSOX	VSTIX	Difference
Sharpe ratio: Return per unit of total volatility	1.45	2.44	-1.00
Sortino ratio: Return per unit of downside risk	2.15	3.42	-1.27
Omega ratio: Gain probability vs. loss probability	1.26	1.44	-0.18
Calmar ratio: Return relative to maximum drawdown	1.76	3.12	-1.37
Martin ratio: Return relative to average drawdown	6.50	14.64	-8.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VCSOX vs. VSTIX - Sharpe Ratio Comparison

The current VCSOX Sharpe Ratio is 1.45, which is lower than the VSTIX Sharpe Ratio of 2.44. The chart below compares the historical Sharpe Ratios of VCSOX and VSTIX, 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

	VCSOX	VSTIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.45	2.44	-1.00
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.75	-0.33
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	0.80	-0.22
Sharpe Ratio (All Time) Calculated using the full available price history	0.23	0.33	-0.10

Drawdowns

VCSOX vs. VSTIX - Drawdown Comparison

The maximum VCSOX drawdown since its inception was -71.49%, roughly equal to the maximum VSTIX drawdown of -69.93%. Use the drawdown chart below to compare losses from any high point for VCSOX and VSTIX.

Drawdown Indicators

	VCSOX	VSTIX	Difference
Max Drawdown Largest peak-to-trough decline	-71.49%	-69.93%	-1.56%
Max Drawdown (1Y) Largest decline over 1 year	-11.85%	-8.98%	-2.87%
Max Drawdown (3Y) Largest decline over 3 years	-18.48%	-21.05%	+2.57%
Max Drawdown (5Y) Largest decline over 5 years	-31.15%	-24.41%	-6.74%
Max Drawdown (10Y) Largest decline over 10 years	-33.08%	-33.52%	+0.44%
Current Drawdown Current decline from peak	-0.87%	-0.73%	-0.14%
Average Drawdown Average peak-to-trough decline	-20.55%	-20.66%	+0.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.19%	1.90%	+1.29%

Volatility

VCSOX vs. VSTIX - Volatility Comparison

VALIC Company I International Socially Responsible Fund (VCSOX) has a higher volatility of 4.36% compared to VALIC Company I Stock Index Fund (VSTIX) at 2.93%. This indicates that VCSOX's price experiences larger fluctuations and is considered to be riskier than VSTIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VCSOX	VSTIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.36%	2.93%	+1.43%
Volatility (6M) Calculated over the trailing 6-month period	11.93%	8.89%	+3.04%
Volatility (1Y) Calculated over the trailing 1-year period	14.41%	11.48%	+2.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.25%	17.44%	-1.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.51%	18.37%	-1.86%

VCSOX vs. VSTIX - Expense Ratio Comparison

VCSOX has a 0.64% expense ratio, which is higher than VSTIX's 0.29% expense ratio.

Dividends

VCSOX vs. VSTIX - Dividend Comparison

VCSOX's dividend yield for the trailing twelve months is around 5.77%, less than VSTIX's 11.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
VCSOX VALIC Company I International Socially Responsible Fund	5.77%	0.00%	1.78%	3.03%	8.42%	22.36%	4.64%	1.62%	1.83%	1.48%
VSTIX VALIC Company I Stock Index Fund	11.56%	0.00%	6.25%	7.76%	11.33%	5.68%	7.26%	3.37%	1.81%	5.48%

Frequently Asked Questions

Can I hold both VCSOX and VSTIX in my portfolio?

VCSOX and VSTIX have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VCSOX or VSTIX?

VCSOX has higher volatility (4.36%) compared to VSTIX (2.93%). In terms of maximum drawdown, VCSOX dropped -71.49% vs VSTIX's -69.93%.

Which has better risk-adjusted returns?

VSTIX currently has the higher Sharpe Ratio (2.44 vs 1.45), 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.