FSPWX vs. VTAPX
Compare and contrast key facts about Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX) and Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX).
FSPWX is a passively managed fund by Fidelity that tracks the performance of the Bloomberg U.S. Treasury Inflation Protected Securities Index. It was launched on Aug 16, 2024. VTAPX is managed by Vanguard. It was launched on Oct 16, 2012.
Performance
FSPWX vs. VTAPX - Performance Comparison
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FSPWX vs. VTAPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
FSPWX Fidelity SAI Inflation-Protected Bond Index Fund | 0.50% | 6.76% | -1.32% |
VTAPX Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares | 0.97% | 6.03% | 1.14% |
Returns By Period
In the year-to-date period, FSPWX achieves a 0.50% return, which is significantly lower than VTAPX's 0.97% return.
FSPWX
- 1D
- 0.70%
- 1M
- -1.27%
- YTD
- 0.50%
- 6M
- 0.41%
- 1Y
- 2.99%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
VTAPX
- 1D
- 0.28%
- 1M
- 0.04%
- YTD
- 0.97%
- 6M
- 1.31%
- 1Y
- 3.86%
- 3Y*
- 4.67%
- 5Y*
- 3.48%
- 10Y*
- 3.05%
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FSPWX vs. VTAPX - Expense Ratio Comparison
FSPWX has a 0.05% expense ratio, which is lower than VTAPX's 0.06% 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%.
Return for Risk
FSPWX vs. VTAPX — Risk / Return Rank
FSPWX
VTAPX
FSPWX vs. VTAPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX) 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.
| FSPWX | VTAPX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.84 | 2.28 | -1.44 |
Sortino ratioReturn per unit of downside risk | 1.17 | 3.41 | -2.24 |
Omega ratioGain probability vs. loss probability | 1.15 | 1.49 | -0.34 |
Calmar ratioReturn relative to maximum drawdown | 1.41 | 4.65 | -3.24 |
Martin ratioReturn relative to average drawdown | 4.38 | 14.74 | -10.36 |
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
| FSPWX | VTAPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.84 | 2.28 | -1.44 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 1.31 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 1.37 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.88 | 1.04 | -0.16 |
Correlation
The correlation between FSPWX and VTAPX is 0.78, 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
FSPWX vs. VTAPX - Dividend Comparison
FSPWX's dividend yield for the trailing twelve months is around 4.17%, more than VTAPX's 3.55% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
FSPWX Fidelity SAI Inflation-Protected Bond Index Fund | 4.17% | 4.19% | 0.69% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
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% |
Drawdowns
FSPWX vs. VTAPX - Drawdown Comparison
The maximum FSPWX drawdown since its inception was -3.84%, smaller than the maximum VTAPX drawdown of -5.33%. Use the drawdown chart below to compare losses from any high point for FSPWX and VTAPX.
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Drawdown Indicators
| FSPWX | VTAPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -3.84% | -5.33% | +1.49% |
Max Drawdown (1Y)Largest decline over 1 year | -2.91% | -0.92% | -1.99% |
Max Drawdown (5Y)Largest decline over 5 years | — | -5.33% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -5.33% | — |
Current DrawdownCurrent decline from peak | -1.27% | -0.28% | -0.99% |
Average DrawdownAverage peak-to-trough decline | -1.04% | -1.04% | 0.00% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.94% | 0.29% | +0.65% |
Volatility
FSPWX vs. VTAPX - Volatility Comparison
Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX) has a higher volatility of 1.44% compared to Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) at 0.59%. This indicates that FSPWX'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
| FSPWX | VTAPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.44% | 0.59% | +0.85% |
Volatility (6M)Calculated over the trailing 6-month period | 2.29% | 0.96% | +1.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.10% | 1.79% | +2.31% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.17% | 2.67% | +1.50% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.17% | 2.23% | +1.94% |