- ISIN
- US31635V2328
- CUSIP
- 31635V232
- Issuer
- Fidelity
- Inception Date
- Dec 20, 2005
- Category
- Government Bonds
- Min. Investment
- $0
- Distribution Policy
- Distributing
- Asset Class
- Bond
Share Price Chart
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Performance
FNBGX Performance Chart
Fidelity Long-Term Treasury Bond Index Fund (FNBGX) is up 0.4% since the beginning of the year. FNBGX is currently trading at $9 per share. Investors who bought $1,000 worth of FNBGX shares 5 years ago would now be looking at an investment worth $734.
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Returns By Period
Fidelity Long-Term Treasury Bond Index Fund (FNBGX) has returned 0.35% so far this year and 4.35% over the past 12 months.
Fidelity Long-Term Treasury Bond Index Fund
- 1D
- -0.11%
- 1M
- 3.98%
- YTD
- 0.35%
- 6M
- 0.04%
- 1Y
- 4.35%
- 3Y*
- -0.53%
- 5Y*
- -5.99%
- 10Y*
- —
Benchmark (S&P 500 Index)
- 1D
- 1.08%
- 1M
- 2.00%
- YTD
- 9.57%
- 6M
- 10.71%
- 1Y
- 25.41%
- 3Y*
- 19.37%
- 5Y*
- 12.48%
- 10Y*
- 13.67%
FNBGX Monthly Returns History
Based on dividend-adjusted daily data since Oct 19, 2017, FNBGX's average daily return is 0.00%, while the average monthly return is -0.01%.
Historically, 50% of months were positive and 50% were negative. The best month was Aug 2019 with a return of +10.6%, while the worst month was Apr 2022 at -8.9%. The longest winning streak lasted 5 consecutive months, and the longest losing streak was 7 months.
On a daily basis, FNBGX closed higher 50% of trading days. The best single day was Mar 16, 2020 with a return of +6.9%, while the worst single day was Mar 17, 2020 at -6.1%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -0.09% | 4.19% | -3.94% | -0.75% | 0.57% | 0.55% | 0.35% | ||||||
| 2025 | 0.54% | 5.20% | -0.92% | -1.16% | -2.76% | 2.42% | -0.85% | 0.33% | 3.05% | 1.28% | 0.42% | -2.09% | 5.30% |
| 2024 | -1.79% | -2.35% | 1.13% | -5.98% | 2.95% | 1.58% | 3.58% | 2.03% | 1.99% | -5.14% | 1.77% | -5.45% | -6.18% |
| 2023 | 7.07% | -4.76% | 4.74% | 0.53% | -2.80% | -0.03% | -2.13% | -2.77% | -7.33% | -4.96% | 9.12% | 8.18% | 3.20% |
| 2022 | -3.70% | -1.53% | -5.26% | -8.92% | -1.96% | -1.62% | 2.43% | -4.52% | -8.00% | -5.64% | 7.14% | -2.34% | -29.89% |
| 2021 | -3.57% | -5.79% | -5.00% | 2.39% | 0.04% | 4.05% | 3.63% | -0.30% | -2.84% | 1.90% | 2.68% | -1.84% | -5.17% |
Benchmark Metrics
Fidelity Long-Term Treasury Bond Index Fund has an annualized alpha of 1.64%, beta of -0.12, and R2 of 0.02 versus S&P 500 Index. Calculated based on daily prices since October 19, 2017.
- This fund participated in 28.05% of S&P 500 Index downside but only 8.30% of its upside - more exposed to losses than it benefited from rallies.
- Beta of -0.12 may look defensive, but with R2 of 0.02 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
- R2 of 0.02 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- 1.64%
- Beta
- -0.12
- R²
- 0.02
- Upside Capture
- 8.30%
- Downside Capture
- 28.05%
Expense Ratio
FNBGX has an expense ratio of 0.03%, which is considered low.
Return for Risk
Risk / Return Rank
FNBGX ranks 7 for risk / return — in the bottom 7% of mutual funds on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Fidelity Long-Term Treasury Bond Index Fund (FNBGX) and compare them to S&P 500 Index.
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.
| FNBGX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.53 | ||
| Sortino ratioReturn per unit of downside risk | -1.98 | ||
| Omega ratioGain probability vs. loss probability | 1.09 | 1.37 | -0.28 |
| Calmar ratioReturn relative to maximum drawdown | 0.62 | 2.81 | -2.19 |
| Martin ratioReturn relative to average drawdown | 1.56 | 12.55 | -11.00 |
Dividends
Dividend History
Fidelity Long-Term Treasury Bond Index Fund provided a 3.98% dividend yield over the last twelve months, with an annual payout of $0.37 per share. The fund has been increasing its distributions for 3 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $0.37 | $0.36 | $0.34 | $0.32 | $0.23 | $0.36 | $0.63 | $0.37 | $0.37 | $0.09 |
Dividend yield | 3.98% | 3.88% | 3.75% | 3.20% | 2.26% | 2.47% | 3.96% | 2.63% | 2.93% | 0.70% |
Monthly Dividends
The table displays the monthly dividend distributions for Fidelity Long-Term Treasury Bond Index Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.00 | $0.15 | ||||||
| 2025 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.36 |
| 2024 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.34 |
| 2023 | $0.03 | $0.02 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.32 |
| 2022 | $0.03 | $0.02 | $0.03 | $0.03 | $0.03 | $0.00 | $0.00 | $0.03 | $0.00 | $0.03 | $0.03 | $0.03 | $0.23 |
| 2021 | $0.00 | $0.00 | $0.03 | $0.08 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.08 | $0.36 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Fidelity Long-Term Treasury Bond Index Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Fidelity Long-Term Treasury Bond Index Fund was 46.86%, occurring on Oct 19, 2023. The portfolio has not yet recovered.
The current Fidelity Long-Term Treasury Bond Index Fund drawdown is 37.03%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
2023 bear market2023 | -46.86%Oct 2023 | 3y 2mo | — | 5y 10moAug 2020 - now |
COVID crash2020 | -12.27%Mar 2020 | 8d | 1mo 4d | 1mo 12dMar 2020 - Apr 2020 |
Rate-hike selloffLate 2018 | -10.11%Nov 2018 | 10mo 19d | 4mo 20d | 1y 3moDec 2017 - Mar 2019 |
2020 pullback2020 | -8.16%Jun 2020 | 1mo 14d | 1mo 25d | 3mo 9dApr 2020 - Jul 2020 |
2019 pullback2019 | -7.90%Nov 2019 | 2mo 4d | 3mo 14d | 5mo 18dSep 2019 - Feb 2020 |
Drawdown Indicators
| FNBGX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -46.86% | -56.78% | +9.92% |
Max Drawdown (1Y)Largest decline over 1 year | -7.28% | -9.10% | +1.82% |
Max Drawdown (3Y)Largest decline over 3 years | -17.66% | -18.90% | +1.24% |
Max Drawdown (5Y)Largest decline over 5 years | -41.54% | -25.43% | -16.11% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.92% | — |
Current DrawdownCurrent decline from peak | -37.03% | -1.43% | -35.60% |
Average DrawdownAverage peak-to-trough decline | -21.72% | -10.71% | -11.01% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.88% | 2.03% | +0.85% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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