FXNAX vs. FNBGX
Compare and contrast key facts about Fidelity U.S. Bond Index Fund (FXNAX) and Fidelity Long-Term Treasury Bond Index Fund (FNBGX).
FXNAX is managed by Fidelity. FNBGX is managed by Fidelity. It was launched on Dec 20, 2005.
Performance
FXNAX vs. FNBGX - Performance Comparison
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FXNAX vs. FNBGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FXNAX Fidelity U.S. Bond Index Fund | -0.26% | 7.14% | 1.35% | 5.82% | -13.55% | -2.10% | 7.63% | 8.50% | 0.04% | 0.38% |
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% |
Returns By Period
In the year-to-date period, FXNAX achieves a -0.26% return, which is significantly higher than FNBGX's -0.35% return.
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%
FNBGX
- 1D
- 0.00%
- 1M
- -3.36%
- YTD
- -0.35%
- 6M
- -0.98%
- 1Y
- -0.60%
- 3Y*
- -1.65%
- 5Y*
- -5.04%
- 10Y*
- —
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FXNAX vs. FNBGX - Expense Ratio Comparison
FXNAX has a 0.03% expense ratio, which is lower than FNBGX's 0.03% 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
FXNAX vs. FNBGX — Risk / Return Rank
FXNAX
FNBGX
FXNAX vs. FNBGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity U.S. Bond Index Fund (FXNAX) and Fidelity Long-Term Treasury Bond Index Fund (FNBGX). 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.
| FXNAX | FNBGX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.93 | 0.01 | +0.91 |
Sortino ratioReturn per unit of downside risk | 1.33 | 0.09 | +1.25 |
Omega ratioGain probability vs. loss probability | 1.16 | 1.01 | +0.15 |
Calmar ratioReturn relative to maximum drawdown | 1.66 | 0.14 | +1.52 |
Martin ratioReturn relative to average drawdown | 4.68 | 0.30 | +4.37 |
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
| FXNAX | FNBGX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.93 | 0.01 | +0.91 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.02 | -0.35 | +0.36 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.31 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.45 | -0.08 | +0.53 |
Correlation
The correlation between FXNAX and FNBGX is 0.91, 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
FXNAX vs. FNBGX - Dividend Comparison
FXNAX's dividend yield for the trailing twelve months is around 3.34%, less than FNBGX's 3.60% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
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% |
Drawdowns
FXNAX vs. FNBGX - Drawdown Comparison
The maximum FXNAX drawdown since its inception was -19.51%, smaller than the maximum FNBGX drawdown of -46.86%. Use the drawdown chart below to compare losses from any high point for FXNAX and FNBGX.
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Drawdown Indicators
| FXNAX | FNBGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.51% | -46.86% | +27.35% |
Max Drawdown (1Y)Largest decline over 1 year | -2.71% | -8.75% | +6.04% |
Max Drawdown (5Y)Largest decline over 5 years | -18.54% | -41.54% | +23.00% |
Max Drawdown (10Y)Largest decline over 10 years | -19.51% | — | — |
Current DrawdownCurrent decline from peak | -3.53% | -37.47% | +33.94% |
Average DrawdownAverage peak-to-trough decline | -3.87% | -21.32% | +17.45% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.96% | 3.98% | -3.02% |
Volatility
FXNAX vs. FNBGX - Volatility Comparison
The current volatility for Fidelity U.S. Bond Index Fund (FXNAX) is 1.55%, while Fidelity Long-Term Treasury Bond Index Fund (FNBGX) has a volatility of 3.50%. This indicates that FXNAX experiences smaller price fluctuations and is considered to be less risky than FNBGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FXNAX | FNBGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.55% | 3.50% | -1.95% |
Volatility (6M)Calculated over the trailing 6-month period | 2.58% | 6.02% | -3.44% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.35% | 10.47% | -6.12% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.04% | 14.61% | -8.57% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.99% | 14.30% | -9.31% |