All charts and data below are CPI-U inflation-adjusted and with dividends reinvested. (Why?)

Total Real Returns

FNBGX: Total Real Return Chart (Dividends Reinvested, Inflation Adjusted)

FNBGX real return snapshot: after CPI-U inflation, FNBGX returned +0.20% over the past year and −4.32% YTD, with dividends reinvested. Since Oct. 10, 2017, FNBGX is down −32.17% in real purchasing-power return, or −4.38%/yr, and is currently −51.49% below its real total-return high on Apr. 21, 2020.

Tue 2017-10-10💬 to Mon 2026-06-08 YTD
Return
1 Year
Return
FNBGX
×
−4.32%
2026-06-08
+0.20%
2026-06-08
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund

Returns

Tue 2017-10-10💬 to Mon 2026-06-08 Overall
Return
Exponential
Trendline
FNBGX
×
−32.17%
−4.38%/yr
−6.56%/yr
(R2=0.564)
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund

Growth of $10,000

Tue 2017-10-10💬 to Mon 2026-06-08 Start
Value
End
Value
FNBGX
×
$10,000.00
2017-10-10
$6,783.09
2026-06-08
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund

Annual Returns

Year FNBGX
2026 (YTD) −4.32%
2025 +2.58%
2024 −8.54%
2023 −0.16%
2022 −33.87%
2021 −11.10%
2020 +16.20%
2019 +11.70%
2018 −3.45%
2017 +2.73%

Drawdowns

Tue 2017-10-10💬 to Mon 2026-06-08 Current
Drawdown
Worst
Drawdown
FNBGX
×
−51.49%
from 2020-04-21 peak
−54.81%
2023-10-19
from 2020-04-21 peak
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund

Rolling Returns

Period ending Mon 2026-06-08 1
Year
2
Years
3
Years
5
Years
10
Years
FNBGX
×
+0.20% −3.41%
−1.72%/yr
−11.56%
−4.01%/yr
−39.25%
−9.49%/yr
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund