FIFZX Mutual Fund — Fidelity Series Bond Index Fund

Fidelity Series Bond Index Fund (FIFZX)

Updated October 16, 2026.

FIFZX is a Mutual Fund. its distribution rate is 4.38%, its trailing-12-month yield is 4.25%. Dividend Vision Distribution Safety Score™ is 98/100 (Safe). Total return is 9.4% over the past 7.5 years, 180.8 points behind SPY at 190.2%.

Fidelity Series Bond Index Fund is a mutual fund that tracks the Bloomberg U.S. Aggregate Bond Index, holding at least 80% of assets in a broad range of investment-grade, U.S. dollar-denominated bonds. The fund carries a current distribution rate in the mid-single digits with distributions made on a periodic basis, and operates with a low expense ratio typical of index funds. This fund appeals to income investors seeking broad exposure to the U.S. bond market with a passive, low-cost approach.

FIFZX performance versus SPY

Price and return data through 2026-10-16.

Total return is 9.4% over the past 7.5 years, 180.8 points behind SPY at 190.2%. Over the past year its total return — price change plus distributions reinvested — is -1.7%. Its deepest 1-year drawdown was 4.8%.

FIFZX key facts

Distribution Safety Score™

98 · Safe

Safety-Adjusted Yield

4.29%

Issuer

Fidelity Investments

Asset type

Mutual Fund

Asset class

Fixed Income

Inception date

04/26/2019

Distribution rate

4.38%

Distribution frequency

Monthly

Trailing yield

4.25%

Last close

$8.71 (as of 2026-10-16)

NAV

$8.29 as of 2026-09-30; source eodhd (stale)

Premium / discount

N/A (price 2026-10-16, NAV 2026-09-30) (NAV stale)

AUM

$34,426,520,000

Average volume

0.0

Dividend

$0.031

Ex-dividend date

09/30/2026

Beta

1.0

Expense ratio unavailable in this published snapshot. Missing values do not mean zero or complete coverage. ?

How Dividend Vision calculates yield and returns

Distribution rate (4.38%) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield (4.25%) is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: Fidelity Investments; prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

FIFZX risks and drawbacks

Total return has trailed SPY over the available window. The deepest 1-year drawdown on record here is 4.8%.

Who may consider FIFZX — and who may not

FIFZX may suit someone looking for a high Distribution Safety Score, moderate current income with a quality tilt. It is a weaker fit for investors hunting double-digit covered-call yields; investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

More on FIFZX

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Tagged: Mutual Fund.

Frequently asked questions

More securities from Fidelity Investments.