POMIX vs. VFFSX
Compare and contrast key facts about T. Rowe Price Total Equity Market Index Fund (POMIX) and Vanguard 500 Index Fund Institutional Select Shares (VFFSX).
POMIX is managed by T. Rowe Price. It was launched on Jan 30, 1998. VFFSX is managed by Vanguard.
Performance
POMIX vs. VFFSX - Performance Comparison
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POMIX vs. VFFSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
POMIX T. Rowe Price Total Equity Market Index Fund | -6.71% | 18.47% | 23.48% | 26.38% | -19.64% | 25.39% | 19.82% | 30.95% | -5.57% | 18.11% |
VFFSX Vanguard 500 Index Fund Institutional Select Shares | -7.06% | 17.87% | 25.00% | 26.28% | -18.14% | 29.24% | 18.35% | 31.88% | -4.42% | 20.80% |
Returns By Period
In the year-to-date period, POMIX achieves a -6.71% return, which is significantly higher than VFFSX's -7.06% return.
POMIX
- 1D
- -0.45%
- 1M
- -7.76%
- YTD
- -6.71%
- 6M
- -3.17%
- 1Y
- 16.21%
- 3Y*
- 17.16%
- 5Y*
- 10.35%
- 10Y*
- 13.02%
VFFSX
- 1D
- -0.39%
- 1M
- -7.68%
- YTD
- -7.06%
- 6M
- -4.59%
- 1Y
- 14.44%
- 3Y*
- 17.17%
- 5Y*
- 11.40%
- 10Y*
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POMIX vs. VFFSX - Expense Ratio Comparison
POMIX has a 0.20% expense ratio, which is higher than VFFSX's 0.01% 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
POMIX vs. VFFSX — Risk / Return Rank
POMIX
VFFSX
POMIX vs. VFFSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Total Equity Market Index Fund (POMIX) and Vanguard 500 Index Fund Institutional Select Shares (VFFSX). 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.
| POMIX | VFFSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.93 | 0.84 | +0.09 |
Sortino ratioReturn per unit of downside risk | 1.44 | 1.30 | +0.14 |
Omega ratioGain probability vs. loss probability | 1.22 | 1.20 | +0.02 |
Calmar ratioReturn relative to maximum drawdown | 1.13 | 1.06 | +0.07 |
Martin ratioReturn relative to average drawdown | 5.46 | 5.14 | +0.32 |
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
| POMIX | VFFSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.93 | 0.84 | +0.09 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.60 | 0.68 | -0.08 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.71 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.42 | 0.75 | -0.33 |
Correlation
The correlation between POMIX and VFFSX is 0.98, 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
POMIX vs. VFFSX - Dividend Comparison
POMIX's dividend yield for the trailing twelve months is around 3.53%, more than VFFSX's 1.24% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
POMIX T. Rowe Price Total Equity Market Index Fund | 3.53% | 3.29% | 1.76% | 1.46% | 1.49% | 1.53% | 1.55% | 1.91% | 2.89% | 0.20% | 2.41% | 2.08% |
VFFSX Vanguard 500 Index Fund Institutional Select Shares | 1.24% | 1.14% | 1.24% | 1.46% | 1.70% | 1.61% | 1.56% | 2.15% | 2.09% | 1.81% | 0.00% | 0.00% |
Drawdowns
POMIX vs. VFFSX - Drawdown Comparison
The maximum POMIX drawdown since its inception was -55.54%, which is greater than VFFSX's maximum drawdown of -33.82%. Use the drawdown chart below to compare losses from any high point for POMIX and VFFSX.
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Drawdown Indicators
| POMIX | VFFSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.54% | -33.82% | -21.72% |
Max Drawdown (1Y)Largest decline over 1 year | -12.46% | -12.12% | -0.34% |
Max Drawdown (5Y)Largest decline over 5 years | -25.56% | -24.51% | -1.05% |
Max Drawdown (10Y)Largest decline over 10 years | -35.05% | — | — |
Current DrawdownCurrent decline from peak | -8.83% | -8.90% | +0.07% |
Average DrawdownAverage peak-to-trough decline | -10.71% | -4.57% | -6.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.92% | 2.49% | +0.43% |
Volatility
POMIX vs. VFFSX - Volatility Comparison
T. Rowe Price Total Equity Market Index Fund (POMIX) and Vanguard 500 Index Fund Institutional Select Shares (VFFSX) have volatilities of 4.38% and 4.24%, 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
| POMIX | VFFSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.38% | 4.24% | +0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 9.11% | 9.08% | +0.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.58% | 18.13% | +0.45% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.52% | 16.86% | +0.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.48% | 18.50% | -0.02% |