MFS Utilities Fund Class B (MMUBX)

Fund Assets	2.31B
Expense Ratio	1.728%
Min. Investment	$1,000
Turnover	14.00%
Dividend (ttm)	0.17
Dividend Yield	0.70%
Dividend Growth	-38.20%
Payout Frequency	Quarterly
Ex-Dividend Date	Sep 24, 2026

Previous Close	24.79
YTD Return	0.12%
1-Year Return	-3.43%
5-Year Return	32.11%
52-Week Low	23.26
52-Week High	27.80
Beta (5Y)	0.60
Holdings	48
Inception Date	Sep 7, 1993

About MMUBX

MFS Utilities Fund Class B is a mutual fund focused on the utilities sector, seeking to deliver total return by primarily investing in equity securities of both U.S. and non-U.S. public utilities. The fund allocates at least 80% of its assets to companies operating in industries such as electric, gas, and telecommunications, as well as related service providers. Managed by experienced professionals, the strategy includes flexibility to invest in bonds and convertible securities, allowing diversification within its utility-focused mandate. This fund appeals to investors seeking exposure to essential infrastructure industries known for their relative stability and consistent demand. By concentrating on utility stocks with strong growth potential, MFS Utilities Fund Class B plays a distinctive role within the financial market, serving as a vehicle for accessing the defensive characteristics and income-generating qualities of the utilities sector. The fund is benchmarked against the Standard & Poor's 500 Utilities Index and has a long-standing track record since its inception in the early 1990s, evidencing its established presence and significance in sector-based mutual fund investing.

• Fund Family: MFS
• Category: Utilities
• Performance Rating: Below Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: MMUBX
• Share Class: B
• Index: S&P 500 TR

Performance

MMUBX had a total return of -3.43% in the past year, including dividends. Since the fund's inception, the average annual return has been 8.64%.

Equivalent Funds

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

Symbol	Provider	Name	Expense Ratio
FIUIX	Fidelity	Fidelity Telecom and Utilities Fund	0.67%
FSUTX	Fidelity	Fidelity Select Utilities Portfolio	0.63%

Other Share Classes

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

Symbol	Share Class	Expense Ratio
MMUKX	R6	0.67%
MMUIX	I	0.76%
MMUJX	R4	0.76%
MMUFX	A	1.01%

Top 10 Holdings

56.24% of assets

Name	Symbol	Weight
NextEra Energy, Inc.	NEE	12.82%
Constellation Energy Corporation	CEG	7.02%
Xcel Energy Inc.	XEL	5.60%
PG&E Corporation	PCG	5.05%
American Electric Power Company, Inc.	AEP	5.02%
Sempra	SRE	4.74%
Dominion Energy, Inc.	D	4.36%
DTE Energy Company	DTE	3.97%
Ameren Corporation	AEE	3.88%
Vistra Corp.	VST	3.79%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 24, 2026	$0.01804	Sep 25, 2026
Jun 25, 2026	$0.01125	Jun 26, 2026
Mar 26, 2026	$0.04862	Mar 27, 2026
Dec 11, 2025	$0.64841	Dec 12, 2025
Sep 25, 2025	$0.07022	Sep 26, 2025
Jun 26, 2025	$0.05954	Jun 27, 2025

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

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