VFIAX vs. VSIAX

Last updated Jun 9, 2026

VFIAX (Vanguard 500 Index Fund Admiral Shares) and VSIAX (Vanguard Small-Cap Value Index Fund Admiral Shares) are both mutual funds - VFIAX is a S&P 500 fund tracking the S&P 500 Index, while VSIAX is a Small Cap Value Equities fund managed by Vanguard. Over the past 10 years, VFIAX returned 15.21%/yr vs 10.32%/yr for VSIAX. Their correlation of 0.83 suggests significant overlap in exposure. VFIAX charges 0.04%/yr vs 0.07%/yr for VSIAX.

Performance

VFIAX vs. VSIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VFIAX achieves a 8.41% return, which is significantly lower than VSIAX's 11.22% return. Over the past 10 years, VFIAX has outperformed VSIAX with an annualized return of 15.21%, while VSIAX has yielded a comparatively lower 10.32% annualized return.

VFIAX

• 1D: -2.63%
• 1M: -0.08%
• YTD: 8.41%
• 6M: 8.46%
• 1Y: 24.51%
• 3Y*: 21.49%
• 5Y*: 13.36%
• 10Y*: 15.21%

VSIAX

• 1D: -1.12%
• 1M: 0.27%
• YTD: 11.22%
• 6M: 11.96%
• 1Y: 24.56%
• 3Y*: 15.88%
• 5Y*: 7.88%
• 10Y*: 10.32%

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

VFIAX vs. VSIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VFIAX Vanguard 500 Index Fund Admiral Shares	8.41%	17.83%	24.97%	26.24%	-18.16%	28.65%	18.32%	31.46%	-4.45%	21.78%
VSIAX Vanguard Small-Cap Value Index Fund Admiral Shares	11.22%	9.09%	11.34%	17.06%	-9.31%	28.10%	5.80%	22.76%	-12.24%	11.80%

Correlation

The correlation between VFIAX and VSIAX 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	0.73
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Sep 28, 2011	0.83

The correlation between VFIAX and VSIAX shifts across timeframes, from 0.70 (1 year) to 0.83 (all time), reflecting how their relationship changes across market environments.

VFIAX vs. VSIAX - Sectors Allocation Comparison

Sectors	VFIAX	VSIAX
Technology	35.7%	10.6%
Financial Services	11.6%	17.6%
Communication Services	11.3%	2.5%
Consumer Cyclical	10.2%	12.4%
Healthcare	8.5%	7.9%
Industrials	8.3%	18.1%
Consumer Defensive	4.9%	4.0%
Energy	3.5%	5.2%
Utilities	2.4%	4.8%
Real Estate	1.9%	10.1%
Basic Materials	1.8%	6.3%

Return for Risk

VFIAX vs. VSIAX — Risk / Return Rank

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

VFIAX

VFIAX Risk / Return Rank: 59
VFIAX Sharpe Ratio Rank: 56
VFIAX Sortino Ratio Rank: 49
VFIAX Omega Ratio Rank: 53
VFIAX Calmar Ratio Rank: 62
VFIAX Martin Ratio Rank: 74

VSIAX

VSIAX Risk / Return Rank: 46
VSIAX Sharpe Ratio Rank: 38
VSIAX Sortino Ratio Rank: 39
VSIAX Omega Ratio Rank: 35
VSIAX Calmar Ratio Rank: 64
VSIAX Martin Ratio Rank: 53

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.

VFIAX vs. VSIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX). 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.

	VFIAX	VSIAX	Difference
Sharpe ratio: Return per unit of total volatility	2.13	1.72	+0.41
Sortino ratio: Return per unit of downside risk	2.87	2.54	+0.33
Omega ratio: Gain probability vs. loss probability	1.39	1.30	+0.09
Calmar ratio: Return relative to maximum drawdown	2.91	2.95	-0.04
Martin ratio: Return relative to average drawdown	13.54	10.46	+3.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VFIAX vs. VSIAX - Sharpe Ratio Comparison

The current VFIAX Sharpe Ratio is 2.13, which is comparable to the VSIAX Sharpe Ratio of 1.72. The chart below compares the historical Sharpe Ratios of VFIAX and VSIAX, 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

	VFIAX	VSIAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.13	1.72	+0.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.79	0.40	+0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.84	0.46	+0.38
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	0.58	-0.12

Drawdowns

VFIAX vs. VSIAX - Drawdown Comparison

The maximum VFIAX drawdown since its inception was -55.20%, which is greater than VSIAX's maximum drawdown of -45.39%. Use the drawdown chart below to compare losses from any high point for VFIAX and VSIAX.

Drawdown Indicators

	VFIAX	VSIAX	Difference
Max Drawdown Largest peak-to-trough decline	-55.20%	-45.39%	-9.81%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-8.87%	-0.03%
Max Drawdown (3Y) Largest decline over 3 years	-18.75%	-24.09%	+5.34%
Max Drawdown (5Y) Largest decline over 5 years	-24.53%	-24.09%	-0.44%
Max Drawdown (10Y) Largest decline over 10 years	-33.83%	-45.39%	+11.56%
Current Drawdown Current decline from peak	-2.94%	-1.12%	-1.82%
Average Drawdown Average peak-to-trough decline	-9.39%	-5.49%	-3.90%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.91%	2.50%	-0.59%

Volatility

VFIAX vs. VSIAX - Volatility Comparison

Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX) have volatilities of 3.81% and 3.87%, 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

	VFIAX	VSIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.81%	3.87%	-0.06%
Volatility (6M) Calculated over the trailing 6-month period	9.41%	10.47%	-1.06%
Volatility (1Y) Calculated over the trailing 1-year period	12.19%	15.20%	-3.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.93%	19.77%	-2.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.08%	22.45%	-4.37%

VFIAX vs. VSIAX - Expense Ratio Comparison

VFIAX has a 0.04% expense ratio, which is lower than VSIAX's 0.07% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

VFIAX vs. VSIAX - Dividend Comparison

VFIAX's dividend yield for the trailing twelve months is around 1.04%, less than VSIAX's 1.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VFIAX Vanguard 500 Index Fund Admiral Shares	1.04%	1.12%	1.24%	1.45%	1.68%	1.24%	1.53%	1.87%	2.05%	1.78%	2.02%	2.10%
VSIAX Vanguard Small-Cap Value Index Fund Admiral Shares	1.76%	1.95%	1.98%	2.10%	2.03%	1.75%	1.68%	2.06%	2.35%	1.79%	1.77%	1.99%

Frequently Asked Questions

Can I hold both VFIAX and VSIAX in my portfolio?

VFIAX and VSIAX 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, VFIAX or VSIAX?

VSIAX has higher volatility (3.87%) compared to VFIAX (3.81%). In terms of maximum drawdown, VFIAX dropped -55.20% vs VSIAX's -45.39%.

Which has better risk-adjusted returns?

VFIAX currently has the higher Sharpe Ratio (2.13 vs 1.72), 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.