VMIAX vs. VTAPX
Compare and contrast key facts about Vanguard Materials Index Fund Admiral Shares (VMIAX) and Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX).
VMIAX is managed by Vanguard. It was launched on Feb 11, 2004. VTAPX is managed by Vanguard. It was launched on Oct 16, 2012.
Performance
VMIAX vs. VTAPX - Performance Comparison
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VMIAX vs. VTAPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VMIAX Vanguard Materials Index Fund Admiral Shares | 9.07% | 12.26% | 0.45% | 13.69% | -11.77% | 27.15% | 19.37% | 23.59% | -17.38% | 23.68% |
VTAPX Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares | 0.97% | 6.03% | 4.73% | 4.59% | -2.84% | 5.26% | 4.97% | 4.85% | 0.53% | 0.82% |
Returns By Period
In the year-to-date period, VMIAX achieves a 9.07% return, which is significantly higher than VTAPX's 0.97% return. Over the past 10 years, VMIAX has outperformed VTAPX with an annualized return of 10.54%, while VTAPX has yielded a comparatively lower 3.05% annualized return.
VMIAX
- 1D
- 2.38%
- 1M
- -7.09%
- YTD
- 9.07%
- 6M
- 11.78%
- 1Y
- 20.87%
- 3Y*
- 10.03%
- 5Y*
- 7.07%
- 10Y*
- 10.54%
VTAPX
- 1D
- 0.00%
- 1M
- 0.08%
- YTD
- 0.97%
- 6M
- 1.23%
- 1Y
- 3.86%
- 3Y*
- 4.67%
- 5Y*
- 3.47%
- 10Y*
- 3.05%
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VMIAX vs. VTAPX - Expense Ratio Comparison
VMIAX has a 0.10% expense ratio, which is higher than VTAPX's 0.06% 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
VMIAX vs. VTAPX — Risk / Return Rank
VMIAX
VTAPX
VMIAX vs. VTAPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Materials Index Fund Admiral Shares (VMIAX) and Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX). 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.
| VMIAX | VTAPX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.00 | 2.18 | -1.18 |
Sortino ratioReturn per unit of downside risk | 1.52 | 3.25 | -1.73 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.47 | -0.27 |
Calmar ratioReturn relative to maximum drawdown | 1.56 | 4.43 | -2.87 |
Martin ratioReturn relative to average drawdown | 5.36 | 13.99 | -8.63 |
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
| VMIAX | VTAPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.00 | 2.18 | -1.18 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.36 | 1.31 | -0.94 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.50 | 1.37 | -0.87 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.38 | 1.04 | -0.66 |
Correlation
The correlation between VMIAX and VTAPX is 0.09, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
VMIAX vs. VTAPX - Dividend Comparison
VMIAX's dividend yield for the trailing twelve months is around 1.41%, less than VTAPX's 3.55% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VMIAX Vanguard Materials Index Fund Admiral Shares | 1.41% | 1.56% | 1.70% | 1.72% | 1.98% | 1.33% | 1.67% | 1.94% | 2.02% | 1.63% | 1.73% | 2.31% |
VTAPX Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares | 3.55% | 3.78% | 2.68% | 2.84% | 6.82% | 4.67% | 1.19% | 1.94% | 2.45% | 1.52% | 0.76% | 0.00% |
Drawdowns
VMIAX vs. VTAPX - Drawdown Comparison
The maximum VMIAX drawdown since its inception was -62.17%, which is greater than VTAPX's maximum drawdown of -5.33%. Use the drawdown chart below to compare losses from any high point for VMIAX and VTAPX.
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Drawdown Indicators
| VMIAX | VTAPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.17% | -5.33% | -56.84% |
Max Drawdown (1Y)Largest decline over 1 year | -14.30% | -0.92% | -13.38% |
Max Drawdown (5Y)Largest decline over 5 years | -25.45% | -5.33% | -20.12% |
Max Drawdown (10Y)Largest decline over 10 years | -41.02% | -5.33% | -35.69% |
Current DrawdownCurrent decline from peak | -7.28% | -0.28% | -7.00% |
Average DrawdownAverage peak-to-trough decline | -9.67% | -1.04% | -8.63% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.16% | 0.29% | +3.87% |
Volatility
VMIAX vs. VTAPX - Volatility Comparison
Vanguard Materials Index Fund Admiral Shares (VMIAX) has a higher volatility of 7.03% compared to Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) at 0.59%. This indicates that VMIAX's price experiences larger fluctuations and is considered to be riskier than VTAPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VMIAX | VTAPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.03% | 0.59% | +6.44% |
Volatility (6M)Calculated over the trailing 6-month period | 13.35% | 0.96% | +12.39% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.43% | 1.79% | +19.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.62% | 2.67% | +16.95% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.17% | 2.23% | +18.94% |