VTSPX vs. FSPWX
Compare and contrast key facts about Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional Shares (VTSPX) and Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX).
VTSPX is managed by Vanguard. It was launched on Oct 17, 2012. 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.
Performance
VTSPX vs. FSPWX - Performance Comparison
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VTSPX vs. FSPWX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
VTSPX Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional Shares | 0.97% | 6.06% | 1.19% |
FSPWX Fidelity SAI Inflation-Protected Bond Index Fund | 0.50% | 6.76% | -1.32% |
Returns By Period
In the year-to-date period, VTSPX achieves a 0.97% return, which is significantly higher than FSPWX's 0.50% return.
VTSPX
- 1D
- 0.28%
- 1M
- 0.04%
- YTD
- 0.97%
- 6M
- 1.36%
- 1Y
- 3.93%
- 3Y*
- 4.69%
- 5Y*
- 3.51%
- 10Y*
- 3.08%
FSPWX
- 1D
- 0.70%
- 1M
- -1.27%
- YTD
- 0.50%
- 6M
- 0.41%
- 1Y
- 2.99%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
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VTSPX vs. FSPWX - Expense Ratio Comparison
VTSPX has a 0.04% expense ratio, which is lower than FSPWX's 0.05% 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
VTSPX vs. FSPWX — Risk / Return Rank
VTSPX
FSPWX
VTSPX vs. FSPWX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional Shares (VTSPX) and Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX). 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.
| VTSPX | FSPWX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.31 | 0.84 | +1.47 |
Sortino ratioReturn per unit of downside risk | 3.51 | 1.17 | +2.34 |
Omega ratioGain probability vs. loss probability | 1.51 | 1.15 | +0.36 |
Calmar ratioReturn relative to maximum drawdown | 4.69 | 1.41 | +3.28 |
Martin ratioReturn relative to average drawdown | 14.73 | 4.38 | +10.34 |
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
| VTSPX | FSPWX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.31 | 0.84 | +1.47 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 1.32 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.39 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.05 | 0.88 | +0.17 |
Correlation
The correlation between VTSPX and FSPWX is 0.77, 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
VTSPX vs. FSPWX - Dividend Comparison
VTSPX's dividend yield for the trailing twelve months is around 3.58%, less than FSPWX's 4.17% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
VTSPX Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional Shares | 3.58% | 3.81% | 2.70% | 2.86% | 6.84% | 4.69% | 1.21% | 1.96% | 2.47% | 1.52% | 0.80% |
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% |
Drawdowns
VTSPX vs. FSPWX - Drawdown Comparison
The maximum VTSPX drawdown since its inception was -5.35%, which is greater than FSPWX's maximum drawdown of -3.84%. Use the drawdown chart below to compare losses from any high point for VTSPX and FSPWX.
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Drawdown Indicators
| VTSPX | FSPWX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.35% | -3.84% | -1.51% |
Max Drawdown (1Y)Largest decline over 1 year | -0.92% | -2.91% | +1.99% |
Max Drawdown (5Y)Largest decline over 5 years | -5.35% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -5.35% | — | — |
Current DrawdownCurrent decline from peak | -0.28% | -1.27% | +0.99% |
Average DrawdownAverage peak-to-trough decline | -1.02% | -1.04% | +0.02% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.29% | 0.94% | -0.65% |
Volatility
VTSPX vs. FSPWX - Volatility Comparison
The current volatility for Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional Shares (VTSPX) is 0.60%, while Fidelity SAI Inflation-Protected Bond Index Fund (FSPWX) has a volatility of 1.44%. This indicates that VTSPX experiences smaller price fluctuations and is considered to be less risky than FSPWX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VTSPX | FSPWX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.60% | 1.44% | -0.84% |
Volatility (6M)Calculated over the trailing 6-month period | 0.96% | 2.29% | -1.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.78% | 4.10% | -2.32% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.67% | 4.17% | -1.50% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.23% | 4.17% | -1.94% |