MFS Corporate Bond R1 (MFBGX)

Fund Assets	4.15B
Expense Ratio	1.442%
Min. Investment	$1,000
Turnover	41.00%
Dividend (ttm)	0.46
Dividend Yield	3.88%
Dividend Growth	-2.25%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	11.79
YTD Return	-3.19%
1-Year Return	-2.88%
5-Year Return	-7.45%
52-Week Low	11.71
52-Week High	12.71
Beta (5Y)	0.36
Holdings	427
Inception Date	Apr 1, 2005

About MFBGX

MFS Corporate Bond Fund Class R1 is a U.S.-domiciled mutual fund focused on investment-grade corporate fixed income securities. Its primary objective is to achieve total return with an emphasis on current income, while also considering opportunities for capital appreciation. The fund invests more than 65% of its assets in corporate debt, primarily denominated in U.S. dollars, and typically maintains a strong allocation to investment-grade corporates, which represented over 80% of the portfolio as of mid-2025. It may also hold limited exposures to high yield corporates, U.S. Treasuries, emerging markets debt, and structured credit instruments including collateralized loan obligations and mortgage-backed securities. The fund employs a disciplined investment process stressing credit selection rather than interest rate (duration) positioning, leveraging both fundamental and quantitative risk management techniques. With a longstanding track record since its 1974 inception and assets in the multi-billion-dollar range, MFS Corporate Bond Fund Class R1 serves as a core fixed income holding for investors seeking diversified exposure to the U.S. corporate bond market, balancing income generation with prudent risk controls and a thoughtful approach to credit quality and sector allocation.

• Fund Family: MFS
• Category: Corporate Bond
• Performance Rating: Low
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: MFBGX
• Share Class: R1
• Index: Bloomberg U.S. Credit TR

Performance

MFBGX had a total return of -2.88% in the past year, including dividends. Since the fund's inception, the average annual return has been 2.97%.

Equivalent Funds

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

Symbol	Provider	Name	Expense Ratio
FIKOX	Fidelity	Fidelity Advisor Corporate Bond Z	0.36%
FCCCX	Fidelity	Fidelity Advisor Corporate Bond C	1.57%
FCBAX	Fidelity	Fidelity Advisor Corporate Bond A	0.75%
FCBTX	Fidelity	Fidelity Advisor Corporate Bond M	0.81%
FCBIX	Fidelity	Fidelity Advisor Corporate Bond I	0.49%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
MFBKX	R6	0.41%
MFBJX	R4	0.50%
MBDIX	I	0.50%
MFBFX	A	0.75%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.0398	Oct 1, 2026
Aug 31, 2026	$0.03843	Sep 1, 2026
Jul 31, 2026	$0.03827	Aug 3, 2026
Jun 30, 2026	$0.03727	Jul 1, 2026
May 29, 2026	$0.03719	Jun 1, 2026
Apr 30, 2026	$0.03518	May 1, 2026

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Oct 16, 2026

Data Sources Report a data error