VWNDX vs. VSTIX

Last updated Jun 4, 2026

VWNDX (Vanguard Windsor Fund Investor Shares) and VSTIX (VALIC Company I Stock Index Fund) are both mutual funds - VWNDX is a Large Cap Value Equities fund managed by Vanguard, while VSTIX is a Large Cap Blend Equities fund managed by VALIC. Over the past 10 years, VWNDX returned 11.76%/yr vs 14.65%/yr for VSTIX. Their correlation of 0.89 suggests significant overlap in exposure. VWNDX charges 0.30%/yr vs 0.29%/yr for VSTIX.

Performance

VWNDX vs. VSTIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Windsor Fund Investor Shares (VWNDX) 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, VWNDX achieves a 7.32% return, which is significantly lower than VSTIX's 11.51% return. Over the past 10 years, VWNDX has underperformed VSTIX with an annualized return of 11.76%, while VSTIX has yielded a comparatively higher 14.65% annualized return.

VWNDX

• 1D: 0.13%
• 1M: 3.33%
• YTD: 7.32%
• 6M: 8.87%
• 1Y: 21.42%
• 3Y*: 14.19%
• 5Y*: 9.21%
• 10Y*: 11.76%

VSTIX

• 1D: 0.13%
• 1M: 5.77%
• YTD: 11.51%
• 6M: 11.54%
• 1Y: 28.60%
• 3Y*: 21.25%
• 5Y*: 13.34%
• 10Y*: 14.65%

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

VWNDX vs. VSTIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VWNDX Vanguard Windsor Fund Investor Shares	7.32%	13.30%	9.53%	15.00%	-3.15%	27.77%	7.38%	30.39%	-12.48%	18.15%
VSTIX VALIC Company I Stock Index Fund	11.51%	14.28%	24.76%	25.62%	-18.11%	28.40%	18.55%	31.05%	-8.09%	21.46%

Correlation

The correlation between VWNDX and VSTIX is 0.70, 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	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (5Y) Calculated over the trailing 5-year period	0.81
Correlation (10Y) Calculated over the trailing 10-year period	0.83
Correlation (All Time) Calculated using the full available price history since Jan 3, 1996	0.89

The correlation between VWNDX and VSTIX shifts across timeframes, from 0.70 (1 year) to 0.89 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VWNDX vs. VSTIX — Risk / Return Rank

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

VWNDX

VWNDX Risk / Return Rank: 45
VWNDX Sharpe Ratio Rank: 40
VWNDX Sortino Ratio Rank: 41
VWNDX Omega Ratio Rank: 38
VWNDX Calmar Ratio Rank: 55
VWNDX Martin Ratio Rank: 49

VSTIX

VSTIX Risk / Return Rank: 76
VSTIX Sharpe Ratio Rank: 80
VSTIX Sortino Ratio Rank: 75
VSTIX Omega Ratio Rank: 70
VSTIX Calmar Ratio Rank: 73
VSTIX 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.

VWNDX vs. VSTIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Windsor Fund Investor Shares (VWNDX) 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.

	VWNDX	VSTIX	Difference
Sharpe ratio: Return per unit of total volatility	1.83	2.60	-0.76
Sortino ratio: Return per unit of downside risk	2.66	3.61	-0.95
Omega ratio: Gain probability vs. loss probability	1.33	1.47	-0.14
Calmar ratio: Return relative to maximum drawdown	2.86	3.31	-0.46
Martin ratio: Return relative to average drawdown	10.10	15.54	-5.44
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VWNDX vs. VSTIX - Sharpe Ratio Comparison

The current VWNDX Sharpe Ratio is 1.83, which is comparable to the VSTIX Sharpe Ratio of 2.60. The chart below compares the historical Sharpe Ratios of VWNDX 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

	VWNDX	VSTIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.83	2.60	-0.76
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.77	-0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.60	0.80	-0.20
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.33	+0.15

Drawdowns

VWNDX vs. VSTIX - Drawdown Comparison

The maximum VWNDX drawdown since its inception was -61.48%, smaller than the maximum VSTIX drawdown of -69.93%. Use the drawdown chart below to compare losses from any high point for VWNDX and VSTIX.

Drawdown Indicators

	VWNDX	VSTIX	Difference
Max Drawdown Largest peak-to-trough decline	-61.48%	-69.93%	+8.45%
Max Drawdown (1Y) Largest decline over 1 year	-7.88%	-8.98%	+1.10%
Max Drawdown (3Y) Largest decline over 3 years	-21.69%	-21.05%	-0.64%
Max Drawdown (5Y) Largest decline over 5 years	-21.69%	-24.41%	+2.72%
Max Drawdown (10Y) Largest decline over 10 years	-40.12%	-33.52%	-6.60%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-8.92%	-20.66%	+11.74%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.22%	1.90%	+0.32%

Volatility

VWNDX vs. VSTIX - Volatility Comparison

Vanguard Windsor Fund Investor Shares (VWNDX) and VALIC Company I Stock Index Fund (VSTIX) have volatilities of 2.91% and 2.83%, 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

	VWNDX	VSTIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.91%	2.83%	+0.08%
Volatility (6M) Calculated over the trailing 6-month period	8.83%	8.86%	-0.03%
Volatility (1Y) Calculated over the trailing 1-year period	12.28%	11.46%	+0.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.32%	17.43%	-0.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.64%	18.37%	+1.27%

VWNDX vs. VSTIX - Expense Ratio Comparison

VWNDX has a 0.30% expense ratio, which is higher than VSTIX's 0.29% expense ratio.

Dividends

VWNDX vs. VSTIX - Dividend Comparison

VWNDX's dividend yield for the trailing twelve months is around 7.25%, less than VSTIX's 11.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VSTIX VALIC Company I Stock Index Fund	11.48%	0.00%	6.25%	7.76%	11.33%	5.68%	7.26%	3.37%	1.81%	5.48%	0.00%	0.00%
VWNDX Vanguard Windsor Fund Investor Shares	7.25%	7.78%	12.48%	8.24%	15.38%	11.46%	8.37%	10.26%	13.15%	3.51%	4.89%	8.51%

Frequently Asked Questions

Can I hold both VWNDX and VSTIX in my portfolio?

VWNDX and VSTIX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VWNDX or VSTIX?

VWNDX has higher volatility (2.91%) compared to VSTIX (2.83%). In terms of maximum drawdown, VWNDX dropped -61.48% vs VSTIX's -69.93%.

Which has better risk-adjusted returns?

VSTIX currently has the higher Sharpe Ratio (2.60 vs 1.83), 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.