VITSX vs. VFIAX
VITSX (Vanguard Total Stock Market Index Fund Institutional Shares) and VFIAX (Vanguard 500 Index Fund Admiral Shares) are both mutual funds - VITSX is a Large Cap Blend Equities fund managed by Vanguard, while VFIAX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, VITSX returned 15.13%/yr vs 15.63%/yr for VFIAX. With a 0.99 correlation, they move nearly in lockstep. VITSX charges 0.03%/yr vs 0.04%/yr for VFIAX.
Performance
VITSX vs. VFIAX - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with VITSX having a 11.98% return and VFIAX slightly lower at 11.69%. Both investments have delivered pretty close results over the past 10 years, with VITSX having a 15.13% annualized return and VFIAX not far ahead at 15.63%.
VITSX
- 1D
- 0.24%
- 1M
- 5.76%
- YTD
- 11.98%
- 6M
- 11.88%
- 1Y
- 29.11%
- 3Y*
- 22.36%
- 5Y*
- 13.05%
- 10Y*
- 15.13%
VFIAX
- 1D
- 0.13%
- 1M
- 5.80%
- YTD
- 11.69%
- 6M
- 11.73%
- 1Y
- 28.95%
- 3Y*
- 22.72%
- 5Y*
- 14.24%
- 10Y*
- 15.63%
VITSX vs. VFIAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VITSX Vanguard Total Stock Market Index Fund Institutional Shares | 11.98% | 17.14% | 23.25% | 26.51% | -19.51% | 25.74% | 20.99% | 30.80% | -5.18% | 21.16% |
VFIAX Vanguard 500 Index Fund Admiral Shares | 11.69% | 17.83% | 24.97% | 26.24% | -18.16% | 28.65% | 18.32% | 31.46% | -4.45% | 21.78% |
Correlation
The correlation between VITSX and VFIAX 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 | 0.99 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.99 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.99 |
Correlation (All Time) Calculated using the full available price history since Nov 14, 2000 | 0.99 |
The correlation between VITSX and VFIAX has been stable across timeframes, ranging from 0.99 to 0.99 - a consistent structural relationship.
VITSX vs. VFIAX - Sectors Allocation Comparison
Sectors
VITSX
VFIAX
Technology
Financial Services
Communication Services
Consumer Cyclical
Industrials
Healthcare
Consumer Defensive
Energy
Utilities
Real Estate
Basic Materials
Technology
VITSX
VFIAX
Financial Services
VITSX
VFIAX
Communication Services
VITSX
VFIAX
Consumer Cyclical
VITSX
VFIAX
Industrials
VITSX
VFIAX
Healthcare
VITSX
VFIAX
Consumer Defensive
VITSX
VFIAX
Energy
VITSX
VFIAX
Utilities
VITSX
VFIAX
Real Estate
VITSX
VFIAX
Basic Materials
VITSX
VFIAX
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Return for Risk
VITSX vs. VFIAX — Risk / Return Rank
VITSX
VFIAX
VITSX vs. VFIAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Total Stock Market Index Fund Institutional Shares (VITSX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). 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.
| VITSX | VFIAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.05 | ||
| Sortino ratioReturn per unit of downside risk | -0.06 | ||
| Omega ratioGain probability vs. loss probability | 1.44 | 1.46 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 3.37 | 3.35 | +0.02 |
| Martin ratioReturn relative to average drawdown | 15.58 | 15.66 | -0.09 |
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
| VITSX | VFIAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.47 | 2.52 | -0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.76 | 0.85 | -0.09 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.82 | 0.87 | -0.04 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.49 | 0.47 | +0.02 |
Drawdowns
VITSX vs. VFIAX - Drawdown Comparison
The maximum VITSX drawdown since its inception was -55.30%, roughly equal to the maximum VFIAX drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for VITSX and VFIAX.
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Drawdown Indicators
| VITSX | VFIAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.30% | -55.20% | -0.10% |
Max Drawdown (1Y)Largest decline over 1 year | -8.92% | -8.90% | -0.02% |
Max Drawdown (3Y)Largest decline over 3 years | -19.36% | -18.75% | -0.61% |
Max Drawdown (5Y)Largest decline over 5 years | -25.36% | -24.53% | -0.83% |
Max Drawdown (10Y)Largest decline over 10 years | -34.97% | -33.83% | -1.14% |
Current DrawdownCurrent decline from peak | 0.00% | 0.00% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -10.07% | -9.40% | -0.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.93% | 1.90% | +0.03% |
Volatility
VITSX vs. VFIAX - Volatility Comparison
Vanguard Total Stock Market Index Fund Institutional Shares (VITSX) and Vanguard 500 Index Fund Admiral Shares (VFIAX) have volatilities of 2.95% and 2.82%, 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
| VITSX | VFIAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.95% | 2.82% | +0.13% |
Volatility (6M)Calculated over the trailing 6-month period | 9.19% | 8.98% | +0.21% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.19% | 11.86% | +0.33% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.36% | 16.90% | +0.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.41% | 18.07% | +0.34% |
VITSX vs. VFIAX - Expense Ratio Comparison
VITSX has a 0.03% expense ratio, which is lower than VFIAX's 0.04% 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
VITSX vs. VFIAX - Dividend Comparison
VITSX's dividend yield for the trailing twelve months is around 1.01%, which matches VFIAX's 1.01% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VFIAX Vanguard 500 Index Fund Admiral Shares | 1.01% | 1.12% | 1.24% | 1.45% | 1.68% | 1.24% | 1.53% | 1.87% | 2.05% | 1.78% | 2.02% | 2.10% |
VITSX Vanguard Total Stock Market Index Fund Institutional Shares | 1.01% | 1.12% | 1.27% | 1.43% | 1.66% | 1.21% | 1.42% | 1.77% | 2.04% | 1.71% | 1.93% | 1.99% |
Frequently Asked Questions
With a correlation of 0.99, VITSX and VFIAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
VITSX has higher volatility (2.95%) compared to VFIAX (2.82%). In terms of maximum drawdown, VITSX dropped -55.30% vs VFIAX's -55.20%.
VFIAX currently has the higher Sharpe Ratio (2.52 vs 2.47), 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.
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