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VFIAX vs. VOO
Performance
Return for Risk
Drawdowns
Volatility
Dividends

VFIAX vs. VOO

Last updated Apr 16, 2026

VFIAX (Vanguard 500 Index Fund Admiral Shares) and VOO (Vanguard S&P 500 ETF) are both funds — VFIAX is a Large Cap Blend Equities fund managed by Vanguard, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, VFIAX returned 14.73%/yr vs 14.85%/yr for VOO. With a 1.00 correlation, they move nearly in lockstep. VFIAX charges 0.04%/yr vs 0.03%/yr for VOO.

Performance

VFIAX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, VFIAX achieves a 2.12% return, which is significantly lower than VOO's 2.93% return. Both investments have delivered pretty close results over the past 10 years, with VFIAX having a 14.73% annualized return and VOO not far ahead at 14.85%.

VFIAX

1D
1.18%
1M
4.07%
YTD
2.12%
6M
5.04%
1Y
30.65%
3Y*
20.58%
5Y*
12.38%
10Y*
14.73%

VOO

1D
0.80%
1M
4.92%
YTD
2.93%
6M
5.87%
1Y
31.79%
3Y*
20.91%
5Y*
12.49%
10Y*
14.85%
*Multi-year figures are annualized to reflect compound growth (CAGR)

VFIAX vs. VOO - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
VFIAX
Vanguard 500 Index Fund Admiral Shares		2.12%17.83%24.97%26.24%-18.16%28.65%18.32%31.46%-4.45%21.78%
VOO
Vanguard S&P 500 ETF		2.93%17.82%24.98%26.32%-18.17%28.79%18.32%31.37%-4.50%21.77%

Correlation

The correlation between VFIAX and VOO is 0.99 — these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.99

Correlation (3Y)
Calculated over the trailing 3-year period

1.00

Correlation (5Y)
Calculated over the trailing 5-year period

1.00

Correlation (All Time)
Calculated using the full available price history since Sep 10, 2010

1.00

The correlation between VFIAX and VOO has been stable across timeframes, ranging from 0.99 to 1.00 — a consistent structural relationship.

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Vanguard 500 Index Fund Admiral Shares

Vanguard S&P 500 ETF

Often compared with VFIAX:
VFIAX vs. SPYVFIAX vs. VTIVFIAX vs. VITAXVFIAX vs. VVIAXVFIAX vs. VFIFXVFIAX vs. VBIAXVFIAX vs. VDADX
Often compared with VOO:
VOO vs. VTIVOO vs. QQQVOO vs. SCHDVOO vs. VTVOO vs. SPYVOO vs. FXAIXVOO vs. IVV

Return for Risk

VFIAX vs. VOO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
VFIAX
VFIAX Risk / Return Rank: 5959
Overall Rank
VFIAX Sharpe Ratio Rank: 4747
Sharpe Ratio Rank
VFIAX Sortino Ratio Rank: 4545
Sortino Ratio Rank
VFIAX Omega Ratio Rank: 4848
Omega Ratio Rank
VFIAX Calmar Ratio Rank: 7373
Calmar Ratio Rank
VFIAX Martin Ratio Rank: 8282
Martin Ratio Rank
VOO
VOO Risk / Return Rank: 6767
Overall Rank
VOO Sharpe Ratio Rank: 6868
Sharpe Ratio Rank
VOO Sortino Ratio Rank: 6767
Sortino Ratio Rank
VOO Omega Ratio Rank: 7070
Omega Ratio Rank
VOO Calmar Ratio Rank: 5858
Calmar Ratio Rank
VOO Martin Ratio Rank: 7373
Martin Ratio Rank
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. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard S&P 500 ETF (VOO). 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.

VFIAXVOODifference

Sharpe ratio

Return per unit of total volatility

2.32

2.42

-0.10

Sortino ratio

Return per unit of downside risk

3.22

3.35

-0.13

Omega ratio

Gain probability vs. loss probability

1.43

1.45

-0.02

Calmar ratio

Return relative to maximum drawdown

3.80

3.68

+0.13

Martin ratio

Return relative to average drawdown

17.35

16.70

+0.65

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. VOO - Sharpe Ratio Comparison

The current VFIAX Sharpe Ratio is 2.32, which is comparable to the VOO Sharpe Ratio of 2.42. The chart below compares the historical Sharpe Ratios of VFIAX and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

VFIAXVOODifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.32

2.42

-0.10

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.73

0.75

-0.01

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.82

0.83

-0.01

Sharpe Ratio (All Time)

Calculated using the full available price history

0.45

0.86

-0.41

Drawdowns

VFIAX vs. VOO - Drawdown Comparison

The maximum VFIAX drawdown since its inception was -55.20%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for VFIAX and VOO.

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Drawdown Indicators

VFIAXVOODifference

Max Drawdown

Largest peak-to-trough decline

-55.20%

-33.99%

-21.21%

Max Drawdown (1Y)

Largest decline over 1 year

-8.90%

-8.90%

0.00%

Max Drawdown (5Y)

Largest decline over 5 years

-24.53%

-24.52%

-0.01%

Max Drawdown (10Y)

Largest decline over 10 years

-33.83%

-33.99%

+0.16%

Current Drawdown

Current decline from peak

0.00%

0.00%

0.00%

Average Drawdown

Average peak-to-trough decline

-9.45%

-3.72%

-5.73%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.95%

1.96%

-0.01%

Volatility

VFIAX vs. VOO - Volatility Comparison

Vanguard 500 Index Fund Admiral Shares (VFIAX) and Vanguard S&P 500 ETF (VOO) have volatilities of 5.61% and 5.55%, 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.

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Volatility by Period

VFIAXVOODifference

Volatility (1M)

Calculated over the trailing 1-month period

5.61%

5.55%

+0.06%

Volatility (6M)

Calculated over the trailing 6-month period

9.58%

9.42%

+0.16%

Volatility (1Y)

Calculated over the trailing 1-year period

13.25%

13.24%

+0.01%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

16.94%

16.85%

+0.09%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

18.06%

18.00%

+0.06%

VFIAX vs. VOO - Expense Ratio Comparison

VFIAX has a 0.04% expense ratio, which is higher than VOO's 0.03% expense ratio. However, 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. VOO - Dividend Comparison

VFIAX's dividend yield for the trailing twelve months is around 1.11%, which matches VOO's 1.11% yield.

TTM20252024202320222021202020192018201720162015
VFIAX
Vanguard 500 Index Fund Admiral Shares		1.11%1.12%1.24%1.45%1.68%1.24%1.53%1.87%2.05%1.78%2.02%2.10%
VOO
Vanguard S&P 500 ETF		1.11%1.13%1.24%1.46%1.69%1.25%1.54%1.88%2.06%1.78%2.02%2.10%