FNBGX vs. FBLTX
Compare and contrast key facts about Fidelity Long-Term Treasury Bond Index Fund (FNBGX) and Fidelity SAI Long-Term Treasury Bond Index Fund (FBLTX).
FNBGX is managed by Fidelity. It was launched on Dec 20, 2005. FBLTX is managed by Fidelity. It was launched on Oct 8, 2015.
Performance
FNBGX vs. FBLTX - Performance Comparison
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FNBGX vs. FBLTX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FNBGX Fidelity Long-Term Treasury Bond Index Fund | -0.35% | 5.30% | -6.18% | 3.20% | -29.89% | -5.17% | 17.58% | 14.24% | -1.62% | 1.86% |
FBLTX Fidelity SAI Long-Term Treasury Bond Index Fund | -0.10% | 4.39% | -8.05% | 2.71% | -31.84% | -4.89% | 18.27% | 14.36% | -1.24% | 1.99% |
Returns By Period
In the year-to-date period, FNBGX achieves a -0.35% return, which is significantly lower than FBLTX's -0.10% return.
FNBGX
- 1D
- 1.21%
- 1M
- -4.27%
- YTD
- -0.35%
- 6M
- -0.77%
- 1Y
- 0.13%
- 3Y*
- -1.65%
- 5Y*
- -4.78%
- 10Y*
- —
FBLTX
- 1D
- 1.37%
- 1M
- -4.30%
- YTD
- -0.10%
- 6M
- -1.00%
- 1Y
- -0.57%
- 3Y*
- -2.77%
- 5Y*
- -5.77%
- 10Y*
- -1.45%
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FNBGX vs. FBLTX - Expense Ratio Comparison
Both FNBGX and FBLTX 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%.
Return for Risk
FNBGX vs. FBLTX — Risk / Return Rank
FNBGX
FBLTX
FNBGX vs. FBLTX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Long-Term Treasury Bond Index Fund (FNBGX) and Fidelity SAI Long-Term Treasury Bond Index Fund (FBLTX). 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.
| FNBGX | FBLTX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.12 | 0.07 | +0.05 |
Sortino ratioReturn per unit of downside risk | 0.23 | 0.17 | +0.05 |
Omega ratioGain probability vs. loss probability | 1.03 | 1.02 | +0.01 |
Calmar ratioReturn relative to maximum drawdown | 0.30 | 0.19 | +0.11 |
Martin ratioReturn relative to average drawdown | 0.66 | 0.41 | +0.25 |
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
| FNBGX | FBLTX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.12 | 0.07 | +0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.33 | -0.37 | +0.04 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | -0.10 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.08 | -0.05 | -0.03 |
Correlation
The correlation between FNBGX and FBLTX is 0.99, 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
FNBGX vs. FBLTX - Dividend Comparison
FNBGX's dividend yield for the trailing twelve months is around 3.60%, less than FBLTX's 3.74% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FNBGX Fidelity Long-Term Treasury Bond Index Fund | 3.60% | 3.88% | 3.75% | 3.20% | 2.26% | 2.47% | 3.96% | 2.63% | 2.93% | 0.70% | 0.00% | 0.00% |
FBLTX Fidelity SAI Long-Term Treasury Bond Index Fund | 3.74% | 4.04% | 3.60% | 3.29% | 2.25% | 1.81% | 6.73% | 2.39% | 2.87% | 2.68% | 3.70% | 0.39% |
Drawdowns
FNBGX vs. FBLTX - Drawdown Comparison
The maximum FNBGX drawdown since its inception was -46.86%, roughly equal to the maximum FBLTX drawdown of -49.06%. Use the drawdown chart below to compare losses from any high point for FNBGX and FBLTX.
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Drawdown Indicators
| FNBGX | FBLTX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -46.86% | -49.06% | +2.20% |
Max Drawdown (1Y)Largest decline over 1 year | -8.75% | -9.51% | +0.76% |
Max Drawdown (5Y)Largest decline over 5 years | -41.54% | -44.19% | +2.65% |
Max Drawdown (10Y)Largest decline over 10 years | — | -49.06% | — |
Current DrawdownCurrent decline from peak | -37.47% | -41.02% | +3.55% |
Average DrawdownAverage peak-to-trough decline | -21.32% | -20.65% | -0.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.97% | 4.47% | -0.50% |
Volatility
FNBGX vs. FBLTX - Volatility Comparison
The current volatility for Fidelity Long-Term Treasury Bond Index Fund (FNBGX) is 3.58%, while Fidelity SAI Long-Term Treasury Bond Index Fund (FBLTX) has a volatility of 3.80%. This indicates that FNBGX experiences smaller price fluctuations and is considered to be less risky than FBLTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FNBGX | FBLTX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.58% | 3.80% | -0.22% |
Volatility (6M)Calculated over the trailing 6-month period | 6.05% | 6.63% | -0.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 10.49% | 11.51% | -1.02% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 14.61% | 15.72% | -1.11% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.30% | 14.62% | -0.32% |