FSMTX vs. FXNAX
Compare and contrast key facts about Fidelity SAI Total Bond Fund (FSMTX) and Fidelity U.S. Bond Index Fund (FXNAX).
FSMTX is managed by Fidelity. It was launched on Oct 25, 2018. FXNAX is managed by Fidelity.
Performance
FSMTX vs. FXNAX - Performance Comparison
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FSMTX vs. FXNAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
FSMTX Fidelity SAI Total Bond Fund | -0.31% | 7.65% | 2.93% | 7.33% | -13.30% | -0.30% | 8.13% | 9.87% | 1.41% |
FXNAX Fidelity U.S. Bond Index Fund | -0.26% | 7.14% | 1.35% | 5.82% | -13.55% | -2.10% | 7.63% | 8.50% | 2.48% |
Returns By Period
In the year-to-date period, FSMTX achieves a -0.31% return, which is significantly lower than FXNAX's -0.26% return.
FSMTX
- 1D
- 0.22%
- 1M
- -1.73%
- YTD
- -0.31%
- 6M
- 0.51%
- 1Y
- 4.15%
- 3Y*
- 4.69%
- 5Y*
- 1.02%
- 10Y*
- —
FXNAX
- 1D
- 0.19%
- 1M
- -1.60%
- YTD
- -0.26%
- 6M
- 0.47%
- 1Y
- 3.69%
- 3Y*
- 3.52%
- 5Y*
- 0.10%
- 10Y*
- 1.54%
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FSMTX vs. FXNAX - Expense Ratio Comparison
FSMTX has a 0.30% expense ratio, which is higher than FXNAX's 0.03% expense ratio.
Return for Risk
FSMTX vs. FXNAX — Risk / Return Rank
FSMTX
FXNAX
FSMTX vs. FXNAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Total Bond Fund (FSMTX) and Fidelity U.S. Bond Index Fund (FXNAX). 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.
| FSMTX | FXNAX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.04 | 0.93 | +0.11 |
Sortino ratioReturn per unit of downside risk | 1.48 | 1.33 | +0.15 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.16 | +0.02 |
Calmar ratioReturn relative to maximum drawdown | 1.96 | 1.66 | +0.30 |
Martin ratioReturn relative to average drawdown | 5.89 | 4.68 | +1.21 |
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
| FSMTX | FXNAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.04 | 0.93 | +0.11 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.18 | 0.02 | +0.16 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.31 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.55 | 0.45 | +0.10 |
Correlation
The correlation between FSMTX and FXNAX is 0.96, 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
FSMTX vs. FXNAX - Dividend Comparison
FSMTX's dividend yield for the trailing twelve months is around 4.20%, more than FXNAX's 3.34% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FSMTX Fidelity SAI Total Bond Fund | 4.20% | 4.56% | 4.70% | 4.29% | 2.59% | 2.74% | 5.36% | 4.93% | 0.62% | 0.00% | 0.00% | 0.00% |
FXNAX Fidelity U.S. Bond Index Fund | 3.34% | 3.58% | 3.40% | 3.15% | 1.81% | 1.74% | 2.92% | 2.68% | 2.74% | 2.57% | 2.76% | 2.52% |
Drawdowns
FSMTX vs. FXNAX - Drawdown Comparison
The maximum FSMTX drawdown since its inception was -17.89%, smaller than the maximum FXNAX drawdown of -19.51%. Use the drawdown chart below to compare losses from any high point for FSMTX and FXNAX.
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Drawdown Indicators
| FSMTX | FXNAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.89% | -19.51% | +1.62% |
Max Drawdown (1Y)Largest decline over 1 year | -2.85% | -2.71% | -0.14% |
Max Drawdown (5Y)Largest decline over 5 years | -17.89% | -18.54% | +0.65% |
Max Drawdown (10Y)Largest decline over 10 years | — | -19.51% | — |
Current DrawdownCurrent decline from peak | -2.16% | -3.53% | +1.37% |
Average DrawdownAverage peak-to-trough decline | -4.54% | -3.87% | -0.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.95% | 0.96% | -0.01% |
Volatility
FSMTX vs. FXNAX - Volatility Comparison
Fidelity SAI Total Bond Fund (FSMTX) and Fidelity U.S. Bond Index Fund (FXNAX) have volatilities of 1.56% and 1.55%, 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
| FSMTX | FXNAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.56% | 1.55% | +0.01% |
Volatility (6M)Calculated over the trailing 6-month period | 2.53% | 2.58% | -0.05% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.40% | 4.35% | +0.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.67% | 6.04% | -0.37% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.24% | 4.99% | +0.25% |