FBLTX vs. FUTBX
FBLTX (Fidelity SAI Long-Term Treasury Bond Index Fund) and FUTBX (Fidelity SAI U.S. Treasury Bond Index Fund) are both Government Bonds funds from Fidelity. Over the past 5 years, FBLTX returned -8.31%/yr vs -1.02%/yr for FUTBX. Their correlation of 0.93 means they have usually moved in the same direction. Both charge a 0.03% expense ratio.
Performance
FBLTX vs. FUTBX - Performance Comparison
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Returns By Period
In the year-to-date period, FBLTX achieves a -3.37% return, which is significantly lower than FUTBX's -0.71% return.
FBLTX
- 1D
- -0.16%
- 1M
- -3.63%
- 6M
- -3.28%
- YTD
- -3.37%
- 1Y
- -2.17%
- 3Y*
- -2.29%
- 5Y*
- -8.31%
- 10Y*
- -2.52%
- ALL TIME*
- -1.05%
FUTBX
- 1D
- 0.00%
- 1M
- -1.03%
- 6M
- -0.84%
- YTD
- -0.71%
- 1Y
- 1.02%
- 3Y*
- 2.88%
- 5Y*
- -1.02%
- 10Y*
- —
- ALL TIME*
- 1.18%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
FBLTX vs. FUTBX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FBLTX Fidelity SAI Long-Term Treasury Bond Index Fund | -3.37% | 4.39% | -8.05% | 2.71% | -31.84% | -4.89% | 18.27% | 14.36% | -1.24% | 9.06% |
FUTBX Fidelity SAI U.S. Treasury Bond Index Fund | -0.71% | 6.12% | 0.70% | 4.19% | -13.00% | -2.54% | 7.76% | 7.30% | 0.95% | 2.28% |
Correlation
The correlation between FBLTX and FUTBX is 0.88, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.88 |
Correlation (3Y) Balances recent behavior with more history. | 0.92 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.93 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017 | 0.93 |
The correlation between FBLTX and FUTBX has been stable across timeframes, ranging from 0.88 to 0.93 - a consistent structural relationship.
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Return for Risk
FBLTX vs. FUTBX — Risk / Return Rank
FBLTX
FUTBX
FBLTX vs. FUTBX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Long-Term Treasury Bond Index Fund (FBLTX) and Fidelity SAI U.S. Treasury Bond Index Fund (FUTBX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| FBLTX | FUTBX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.63 | ||
| Sortino ratioReturn per unit of downside risk | -0.86 | ||
| Omega ratioGain probability vs. loss probability | 1.00 | 1.10 | -0.10 |
| Calmar ratioReturn relative to maximum drawdown | -0.05 | 0.71 | -0.76 |
| Martin ratioReturn relative to average drawdown | -0.10 | 1.68 | -1.78 |
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Drawdowns
FBLTX vs. FUTBX - Drawdown Comparison
The maximum FBLTX drawdown since its inception was -49.06%, which is greater than FUTBX's maximum drawdown of -19.69%. Use the drawdown chart below to compare losses from any high point for FBLTX and FUTBX.
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Drawdown Indicators
| FBLTX | FUTBX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -49.06% | -19.69% | -29.37% |
Max Drawdown (1Y)Largest decline over 1 year | -7.66% | -3.09% | -4.57% |
Max Drawdown (3Y)Largest decline over 3 years | -14.75% | -4.86% | -9.89% |
Max Drawdown (5Y)Largest decline over 5 years | -44.19% | -17.03% | -27.16% |
Max Drawdown (10Y)Largest decline over 10 years | -49.06% | — | — |
Current DrawdownCurrent decline from peak | -42.95% | -8.34% | -34.61% |
Average DrawdownAverage peak-to-trough decline | -21.28% | -6.97% | -14.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.54% | 1.30% | +2.24% |
Volatility
FBLTX vs. FUTBX - Volatility Comparison
Fidelity SAI Long-Term Treasury Bond Index Fund (FBLTX) has a higher volatility of 2.48% compared to Fidelity SAI U.S. Treasury Bond Index Fund (FUTBX) at 0.92%. This indicates that FBLTX's price experiences larger fluctuations and is considered to be riskier than FUTBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FBLTX | FUTBX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.48% | 0.92% | +1.56% |
Volatility (6M)Calculated over the trailing 6-month period | 6.79% | 2.87% | +3.92% |
Volatility (1Y)Calculated over the trailing 1-year period | 9.26% | 3.73% | +5.53% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.57% | 5.80% | +9.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.51% | 5.13% | +9.38% |
FBLTX vs. FUTBX - Expense Ratio Comparison
Both FBLTX and FUTBX have an expense ratio of 0.03%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
FBLTX vs. FUTBX - Dividend Comparison
FBLTX's dividend yield for the trailing twelve months is around 3.97%, more than FUTBX's 3.50% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FBLTX Fidelity SAI Long-Term Treasury Bond Index Fund | 3.97% | 4.04% | 3.60% | 3.29% | 2.25% | 1.81% | 6.73% | 2.39% | 2.87% | 2.68% | 3.70% | 0.39% |
FUTBX Fidelity SAI U.S. Treasury Bond Index Fund | 3.50% | 3.43% | 2.90% | 2.12% | 1.12% | 0.86% | 4.54% | 2.75% | 2.05% | 1.65% | 0.00% | 0.00% |
Frequently Asked Questions
FBLTX and FUTBX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FBLTX has higher volatility (2.48%) compared to FUTBX (0.92%). In terms of maximum drawdown, FBLTX dropped -49.06% vs FUTBX's -19.69%.
FUTBX currently has the higher Sharpe Ratio (0.59 vs -0.04), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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