MMUBX Mutual Fund

NAV$25.82

AUM$1M

TER1.75%

Holdings40

See how much of MMUBX you already own

Just $25 once·$99/mo·Download sample

X-ray my portfolio free

MMUBX Mutual Fund

NAV$25.82

MFS Utilities Fund Class B

AUM$1M

TER1.75%

Holdings40

See how much of MMUBX you already own

Just $25 once·$99/mo·Download sample

X-ray my portfolio free

Overview Performance Chart Dividends Top Holdings All Holdings Sectors Geography Similar Compare Overlap

Showing top 40 of 40 holdings · as of Sep 30, 2026

MMUBX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Sector	Industry
1	NEE	Nextera Energy IncUtilities · Electric Utilities	12.60%	12.6%	3,836,295	$290.56M	Utilities	Electric Utilities
2	CEG	Constellation Energy CorpUtilities · Electric Utilities	6.94%	19.5%	629,928	$160.01M	Utilities	Electric Utilities
Sector and industry · Pro
3	XEL	Xcel Energy Inc.	5.57%	25.1%	1,824,279	$128.58M
4	AEP	American Electri	5.19%	30.3%	1,009,747	$119.80M
5	—	Pg&E Corp.	4.98%	35.3%	9,376,180	$114.86M
6	SRE	Sempra	4.83%	40.1%	1,429,609	$111.45M
7	D	Dominion Energy Inc	4.27%	44.4%	1,628,923	$98.58M
8	—	Vistra Energy Corp.	4.07%	48.4%	679,084	$93.95M
9	AEE	Ameren Corp	3.89%	52.3%	902,063	$89.65M
10	DTE	Dte Energy Co.	3.81%	56.1%	720,653	$87.78M
11	SO	Southern Co.	3.80%	59.9%	1,057,301	$87.64M
12	ETR	Entergy Corp.	3.22%	63.2%	749,289	$74.37M
13	NI	Nisource Inc.	3.21%	66.4%	1,895,510	$73.92M
14	LNT	Alliant Energy Corp.	2.77%	69.1%	1,009,071	$63.87M
15	PPL	Ppl Corp (Utilities)	2.64%	71.8%	1,849,371	$60.83M
16	—	Pinnacle West Corp	2.58%	74.4%	639,447	$59.49M
17	EIX	Edison International	2.56%	76.9%	1,097,336	$58.96M
18	SSE	Sse Plc	2.40%	79.3%	1,681,789	$55.43M
19	—	Pub Serv Enterp	2.08%	81.4%	712,590	$47.99M
20	WEC	Wec Energy Group Inc.	1.94%	83.3%	444,088	$44.76M
21	ES	Eversource Energ	1.80%	85.1%	645,499	$41.42M
22	ATO	Atmos Energy Corp	1.78%	86.9%	262,017	$40.99M
23	UU	United Utilities Group PLC Ord Gbp0.05	1.64%	88.6%	2,028,592	$37.92M
24	OGE	Oge Energy Corp.	1.63%	90.2%	825,199	$37.48M
25	RWEG	Rwe Ag	1.53%	91.7%	524,646	$35.23M
26	EDPR	Edp Renováveis, S.A.	1.40%	93.1%	2,212,322	$32.20M
27	NG	National Grid Plc	1.27%	94.4%	1,941,207	$29.40M
28	—	Currency Cash Cash_USD	0.77%	95.2%	17,586,327	$17.67M
29	EOAN	E.on Se	0.76%	95.9%	913,655	$17.44M
30	—	Orsted A/S	0.66%	96.6%	745,031	$15.25M
31	AWK	American Water Works Co. Inc.	0.62%	97.2%	109,998	$14.24M
32	EDP	Edp Group	0.58%	97.8%	2,425,487	$13.30M
33	SR	Spire Inc.	0.55%	98.3%	166,722	$12.69M
34	—	Cia De Saneamento Basico Do Estado De Sao Paulo Sabesp	0.55%	98.9%	2,376,000	$12.60M
35	VIE	Vie Fp Veolia Environnement Sa	0.54%	99.4%	358,264	$12.47M
36	ENEI	Enel Spa	0.51%	99.9%	1,185,804	$11.75M
37	—	Cash Offset	0.01%	100.0%	235,106	$235.1K
38	—	Currency Cash Cash_GBP	0.00%	100.0%	108	$108
39	—	Currency Cash Cash_EUR	0.00%	100.0%	81	$81
40	—	Currency Cash Cash_ILS	0.00%	100.0%	10,090	$10.1K

Not reported for this fund: share changes.

FundXLS Pro

See every sector, industry and share-change value

X-ray every fund you own at once, ETFs and mutual funds that hold stocks directly, and see how much of your money lands on the same stocks twice.

Unlock FundXLS Pro$45/quarter Pro · Cancel anytime

MMUBX Mutual Fund All Holdings

MMUBX holdings total 40 positions. The top 10 holdings account for 56.1% of the fund, led by Nextera Energy Inc at 12.6%, Constellation Energy Corporation Com at 6.9%, Xcel Energy Inc. at 5.6%.

MMUBX portfolio concentration is relatively high, with the top 10 representing 56.1% of total assets. The largest sector exposure is Utilities at 90.5%.

MMUBX sectors provide a detailed breakdown. MMUBX overlap shows how holdings compare to other funds in your portfolio.