MFS Total Return Bond Fund Class A (MRBFX)

Fund Assets	7.78B
Expense Ratio	0.593%
Min. Investment	$1,000
Turnover	48.00%
Dividend (ttm)	0.38
Dividend Yield	4.12%
Dividend Growth	-4.60%
Payout Frequency	Monthly
Ex-Dividend Date	Oct 30, 2026

Previous Close	9.30
YTD Return	-0.36%
1-Year Return	0.01%
5-Year Return	-1.40%
52-Week Low	9.11
52-Week High	9.76
Beta (5Y)	0.11
Holdings	1077
Inception Date	Jan 4, 1999

About MRBFX

MFS Total Return Bond Fund Class A is an open-end mutual fund designed to provide investors with a combination of current income and capital appreciation by investing primarily in fixed-income securities. The fund’s core strategy emphasizes a diversified portfolio that typically maintains at least 80% allocation to bonds, focusing on investment-grade debt but with the flexibility to include select below-investment-grade securities to enhance returns. Its investment approach is research-driven, integrating macroeconomic analysis, bottom-up security selection, and quantitative insights to optimize sector allocation, security choice, and interest rate risk positioning. The fund’s holdings often comprise U.S. Treasury notes, government agency securities, and high-quality corporate bonds, reflecting a moderate credit quality and interest rate sensitivity profile. Serving as an intermediate core-plus bond fund, it benchmarks its performance against the Bloomberg U.S. Aggregate Bond Index and plays a significant role for investors seeking diversified fixed-income exposure within broader asset allocation strategies. Managed collaboratively by experienced portfolio managers and analysts since its inception in 1999, MFS Total Return Bond Fund Class A is notable for its large asset base and structured, risk-aware investment process.

• Fund Family: MFS
• Category: Intermediate Core-Plus Bond
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: MRBFX
• Share Class: A
• Index: Bloomberg U.S. Aggregate Bond TR

Performance

MRBFX had a total return of 0.01% in the past year, including dividends. Since the fund's inception, the average annual return has been 4.05%.

Equivalent Funds

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

Symbol	Provider	Name	Expense Ratio
FBKWX	Fidelity	Fidelity Advisor Total Bond Z	0.36%
FBNDX	Fidelity	Fidelity Investment Grade Bond Fund	0.46%
FCEPX	Fidelity	Fidelity Advisor Total Bond C	1.50%
FEPAX	Fidelity	Fidelity Advisor Total Bond A	0.73%
FEPIX	Fidelity	Fidelity Advisor Total 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
MRBKX	R6	0.36%
MRBJX	R4	0.45%
MRBIX	I	0.45%
MRBHX	R3	0.70%

Dividend History

Ex-Dividend	Amount	Pay Date
Oct 30, 2026	$0.03356	Nov 2, 2026
Sep 30, 2026	$0.0335	Oct 1, 2026
Aug 31, 2026	$0.03204	Sep 1, 2026
Jul 31, 2026	$0.03203	Aug 3, 2026
Jun 30, 2026	$0.03103	Jul 1, 2026
May 29, 2026	$0.03103	Jun 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:

Nov 4, 2026

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