Fidelity Flex U.S. Bond Index Fund (FIBUX)

Fund Assets	4.23B
Expense Ratio	0.00%
Min. Investment	$0.00
Turnover	68.00%
Dividend (ttm)	0.38
Dividend Yield	4.30%
Dividend Growth	7.08%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	8.76
YTD Return	-2.24%
1-Year Return	-1.94%
5-Year Return	-3.53%
52-Week Low	8.70
52-Week High	9.36
Beta (5Y)	0.25
Holdings	6006
Inception Date	Mar 9, 2017

About FIBUX

Fidelity Flex U.S. Bond Index Fund is an open-end mutual fund that primarily aims to mirror the overall performance of the U.S. investment-grade bond market. By tracking the Bloomberg U.S. Aggregate Bond Index, the fund invests at least 80% of its assets in a diversified pool of U.S. bonds, including government, corporate, and mortgage-backed securities. Employing statistical sampling, the fund manages interest rate sensitivity, credit quality, and sector representation to efficiently replicate the benchmark’s risk-return characteristics with thousands of underlying holdings. Launched in 2017 by Fidelity Investments, it features no minimum investment and is positioned as a passively managed, intermediate core bond fund. The fund’s structure makes it a representative vehicle for broad fixed income market exposure, serving both institutional and individual investors interested in tracking aggregate U.S. bond performance. Its significant asset size, competitive fee structure, and monthly income distribution also highlight its role as a core fixed income component in diversified portfolios seeking stability and income.

• Fund Family: Fidelity
• Category: Intermediate Core Bond
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: FIBUX
• Index: Bloomberg U.S. Aggregate Bond TR

Performance

FIBUX had a total return of -1.94% in the past year, including dividends. Since the fund's inception, the average annual return has been 1.39%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

Symbol	Provider	Name	Expense Ratio
SWAGX	Schwab	Schwab U.S. Aggregate Bond Index Fund	0.04%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.03151	Oct 1, 2026
Aug 31, 2026	$0.03208	Sep 1, 2026
Jul 31, 2026	$0.03189	Aug 3, 2026
Jun 30, 2026	$0.03087	Jul 1, 2026
May 31, 2026	$0.03158	Jun 1, 2026
Apr 30, 2026	$0.03063	May 1, 2026

Data Sources: Tiingo, Financial Modeling Prep, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Financial Modeling Prep. Several fund data points are also provided by Finnhub.

Last checked:

Oct 16, 2026

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