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 −8.64% over the past year and −7.67% YTD, with dividends reinvested. Since Oct. 10, 2017, FNBGX is down −34.55% in real purchasing-power return, or −4.63%/yr, and is currently −53.19% below its real total-return high on Apr. 21, 2020.

Data ending Tue Sep. 15, 2026

Growth of $10,000

Tue 2017-10-10💬 to Tue 2026-09-15 Overall
Return 		Exponential
Trendline
FNBGX × 		−34.55%
−4.63%/yr 		−6.55%/yr
R2=0.586
Fidelity Long-Term Treasury Bond Index Fund Institutional Premium Class Mutual Fund

Growth of $10,000 Summary

Tue 2017-10-10💬 to Tue 2026-09-15 Start
Value 		End
Value
FNBGX × 		$10,000.00
2017-10-10 		$6,545.36
2026-09-15

This Year’s Performance

through 2026-09-15

  YTD YoY
FNBGX × 		−7.67% −8.64%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
FNBGX × 		−53.19%
on 2026-09-15
from 2020-04-21 peak 		−54.80%
on 2023-10-19
from 2020-04-21 peak

Rolling Returns

Period ending Tue 2026-09-15 1 yr 2 yr 3 yr 5 yr 10 yr
FNBGX × 		−8.64% −15.23%
−7.93%/yr 		−6.99%
−2.39%/yr 		−44.52%
−11.12%/yr 		—

Annual Returns

Year FNBGX
2026 (YTD) −7.67%
2025 +2.58%
2024 −8.54%
2023 −0.16%
2022 −33.87%
2021 −11.11%
2020 +16.20%
2019 +11.70%
2018 −3.45%
2017 +2.73%