INDEX vs. VSMPX
INDEX (Index Funds S&P 500 Equal Weight) and VSMPX (Vanguard Total Stock Market Index Fund Institutional Plus Shares) are both Large Cap Blend Equities funds. Over the past 10 years, INDEX returned 13.13%/yr vs 15.14%/yr for VSMPX. With a 0.95 correlation, they move nearly in lockstep. INDEX charges 0.25%/yr vs 0.02%/yr for VSMPX.
Performance
INDEX vs. VSMPX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with INDEX having a 11.54% return and VSMPX slightly higher at 11.99%. Over the past 10 years, INDEX has underperformed VSMPX with an annualized return of 13.13%, while VSMPX has yielded a comparatively higher 15.14% annualized return.
INDEX
- 1D
- 0.14%
- 1M
- 5.79%
- YTD
- 11.54%
- 6M
- 11.59%
- 1Y
- 28.87%
- 3Y*
- 21.01%
- 5Y*
- 11.61%
- 10Y*
- 13.13%
VSMPX
- 1D
- 0.24%
- 1M
- 5.76%
- YTD
- 11.99%
- 6M
- 11.88%
- 1Y
- 29.12%
- 3Y*
- 22.37%
- 5Y*
- 13.06%
- 10Y*
- 15.14%
INDEX vs. VSMPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
INDEX Index Funds S&P 500 Equal Weight | 11.54% | 17.77% | 24.73% | 10.58% | -11.84% | 29.10% | 12.75% | 28.98% | -7.83% | 18.70% |
VSMPX Vanguard Total Stock Market Index Fund Institutional Plus Shares | 11.99% | 17.15% | 23.26% | 26.53% | -19.50% | 25.74% | 21.01% | 30.79% | -5.16% | 21.19% |
Correlation
The correlation between INDEX and VSMPX 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 | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.97 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.95 |
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016 | 0.95 |
The correlation between INDEX and VSMPX has been stable across timeframes, ranging from 0.95 to 0.99 - a consistent structural relationship.
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Return for Risk
INDEX vs. VSMPX — Risk / Return Rank
INDEX
VSMPX
INDEX vs. VSMPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Index Funds S&P 500 Equal Weight (INDEX) and Vanguard Total Stock Market Index Fund Institutional Plus Shares (VSMPX). 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.
| INDEX | VSMPX | 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 | 1.46 | 1.44 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 3.33 | 3.38 | -0.05 |
| Martin ratioReturn relative to average drawdown | 15.62 | 15.59 | +0.04 |
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
| INDEX | VSMPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.52 | 2.47 | +0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.70 | 0.76 | -0.06 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.71 | 0.83 | -0.12 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.63 | 0.83 | -0.20 |
Drawdowns
INDEX vs. VSMPX - Drawdown Comparison
The maximum INDEX drawdown since its inception was -38.82%, which is greater than VSMPX's maximum drawdown of -34.97%. Use the drawdown chart below to compare losses from any high point for INDEX and VSMPX.
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Drawdown Indicators
| INDEX | VSMPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.82% | -34.97% | -3.85% |
Max Drawdown (1Y)Largest decline over 1 year | -8.93% | -8.92% | -0.01% |
Max Drawdown (3Y)Largest decline over 3 years | -18.75% | -19.36% | +0.61% |
Max Drawdown (5Y)Largest decline over 5 years | -21.52% | -25.35% | +3.83% |
Max Drawdown (10Y)Largest decline over 10 years | -38.82% | -34.97% | -3.85% |
Current DrawdownCurrent decline from peak | 0.00% | 0.00% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -4.63% | -4.59% | -0.04% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.90% | 1.93% | -0.03% |
Volatility
INDEX vs. VSMPX - Volatility Comparison
Index Funds S&P 500 Equal Weight (INDEX) and Vanguard Total Stock Market Index Fund Institutional Plus Shares (VSMPX) have volatilities of 2.83% and 2.95%, 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
| INDEX | VSMPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.83% | 2.95% | -0.12% |
Volatility (6M)Calculated over the trailing 6-month period | 8.96% | 9.19% | -0.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.81% | 12.19% | -0.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.76% | 17.36% | -0.60% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.65% | 18.41% | +0.24% |
INDEX vs. VSMPX - Expense Ratio Comparison
INDEX has a 0.25% expense ratio, which is higher than VSMPX's 0.02% 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
INDEX vs. VSMPX - Dividend Comparison
INDEX's dividend yield for the trailing twelve months is around 0.93%, less than VSMPX's 1.02% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
INDEX Index Funds S&P 500 Equal Weight | 0.93% | 1.04% | 1.97% | 1.56% | 3.25% | 1.81% | 1.53% | 1.61% | 3.09% | 1.15% | 0.00% |
VSMPX Vanguard Total Stock Market Index Fund Institutional Plus Shares | 1.02% | 1.13% | 1.27% | 1.43% | 1.67% | 1.22% | 1.43% | 1.78% | 2.05% | 1.73% | 1.95% |
Frequently Asked Questions
With a correlation of 0.99, INDEX and VSMPX 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.
VSMPX has higher volatility (2.95%) compared to INDEX (2.83%). In terms of maximum drawdown, INDEX dropped -38.82% vs VSMPX's -34.97%.
INDEX 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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