VSIIX vs. VOO
Compare and contrast key facts about Vanguard Small-Cap Value Index Fund Institutional Shares (VSIIX) and Vanguard S&P 500 ETF (VOO).
VSIIX is managed by Vanguard. It was launched on Dec 7, 1999. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010.
Performance
VSIIX vs. VOO - Performance Comparison
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VSIIX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VSIIX Vanguard Small-Cap Value Index Fund Institutional Shares | 0.79% | 9.10% | 11.37% | 17.06% | -9.31% | 28.12% | 5.81% | 22.81% | -12.24% | 11.80% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, VSIIX achieves a 0.79% return, which is significantly higher than VOO's -4.42% return. Over the past 10 years, VSIIX has underperformed VOO with an annualized return of 9.85%, while VOO has yielded a comparatively higher 14.05% annualized return.
VSIIX
- 1D
- -0.41%
- 1M
- -7.11%
- YTD
- 0.79%
- 6M
- 2.85%
- 1Y
- 16.28%
- 3Y*
- 12.52%
- 5Y*
- 7.36%
- 10Y*
- 9.85%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
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VSIIX vs. VOO - Expense Ratio Comparison
VSIIX has a 0.06% 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%.
Return for Risk
VSIIX vs. VOO — Risk / Return Rank
VSIIX
VOO
VSIIX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Small-Cap Value Index Fund Institutional Shares (VSIIX) 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.
| VSIIX | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.82 | 0.98 | -0.17 |
Sortino ratioReturn per unit of downside risk | 1.28 | 1.50 | -0.22 |
Omega ratioGain probability vs. loss probability | 1.17 | 1.23 | -0.05 |
Calmar ratioReturn relative to maximum drawdown | 1.04 | 1.53 | -0.50 |
Martin ratioReturn relative to average drawdown | 4.29 | 7.29 | -3.00 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| VSIIX | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.82 | 0.98 | -0.17 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.37 | 0.70 | -0.33 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.45 | 0.78 | -0.33 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.42 | 0.83 | -0.41 |
Correlation
The correlation between VSIIX and VOO is 0.84, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
VSIIX vs. VOO - Dividend Comparison
VSIIX's dividend yield for the trailing twelve months is around 1.96%, more than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VSIIX Vanguard Small-Cap Value Index Fund Institutional Shares | 1.96% | 1.96% | 1.99% | 2.10% | 2.04% | 1.76% | 1.69% | 2.07% | 2.36% | 1.80% | 1.77% | 1.99% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
VSIIX vs. VOO - Drawdown Comparison
The maximum VSIIX drawdown since its inception was -62.05%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for VSIIX and VOO.
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Drawdown Indicators
| VSIIX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.05% | -33.99% | -28.06% |
Max Drawdown (1Y)Largest decline over 1 year | -14.16% | -11.98% | -2.18% |
Max Drawdown (5Y)Largest decline over 5 years | -24.09% | -24.52% | +0.43% |
Max Drawdown (10Y)Largest decline over 10 years | -45.38% | -33.99% | -11.39% |
Current DrawdownCurrent decline from peak | -8.24% | -6.29% | -1.95% |
Average DrawdownAverage peak-to-trough decline | -8.57% | -3.72% | -4.85% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.42% | 2.52% | +0.90% |
Volatility
VSIIX vs. VOO - Volatility Comparison
The current volatility for Vanguard Small-Cap Value Index Fund Institutional Shares (VSIIX) is 4.89%, while Vanguard S&P 500 ETF (VOO) has a volatility of 5.29%. This indicates that VSIIX experiences smaller price fluctuations and is considered to be less risky than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VSIIX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.89% | 5.29% | -0.40% |
Volatility (6M)Calculated over the trailing 6-month period | 11.02% | 9.44% | +1.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.61% | 18.10% | +2.51% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.83% | 16.82% | +3.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.81% | 17.99% | +3.82% |