MFS Utilities Fund
Actively managed U.S. stock fund
As of its 2026 Q2 report, MFS Utilities Fund held 40 positions with $2.82B in net assets. Its ten largest holdings made up 56.4% of the fund. The MMUFX share class costs 1.01% a year. Over the 12 months to May 2026, MMUFX returned 14.6%, with dividends reinvested. In 2026 Q3 it added no new positions and exited 1.
The funds investment objective is to seek total return.
The fund invests at least 80% of assets in securities of utilities companies—those engaged in energy generation and distribution, water services, or telecommunications—selected through fundamental analysis of individual issuers. The fund may hold a significant percentage of assets in a single issuer or a small number of issuers, concentrating risk accordingly. The fund invests in both U.S. and foreign securities, including emerging markets, and may hold both equity and debt instruments.
What you own
| Company | Weight | Value | Shares | Reported price |
|---|---|---|---|---|
13.32% | $375.50M | 3.8M | $97.88 | |
7.00% | $197.17M | 629.9K | $313.00 | |
PCGPG&E Corp. | 5.59% | $157.50M | 9.5M | $16.62 |
5.37% | $151.32M | 1.8M | $82.95 | |
SRESempra | 4.88% | $137.44M | 1.4M | $95.12 |
4.88% | $137.38M | 1.0M | $137.11 | |
4.08% | $114.87M | 757.3K | $151.69 | |
AEEAmeren Corp. | 3.83% | $108.01M | 950.4K | $113.65 |
3.79% | $106.73M | 1.7M | $64.50 | |
3.69% | $103.86M | 1.1M | $96.70 |
Reported price is the fund's own reported value divided by its own reported shares at 2026-04-30 — not a live quote, and not what the fund paid.
All 40 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Stocks | 99.10% |
| Cash & short-term | 0.77% |
| Derivatives | 0.02% |
Derivatives are shown at market value, not notional exposure.
By sector
- Utilities
- 88.9%
- International
- 10.3%
- Cash
- 0.8%
How it has done
MMUFX share class · total returns with dividends reinvested
Volatility over the last 12 months: 15.03%. Past returns are a record, not a forecast.
Jun 2026 and Jul 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
The 9 share classes hold the same portfolio
| Share class | Expense ratio | 1 year | 3 years | 5 years | Worst fall |
|---|---|---|---|---|---|
| 1.01% | +14.61% | +37.41% | +45.68% | -11.60% | |
| 0.76% | +14.93% | +38.55% | +47.60% | -11.54% | |
| 1.76% | +13.80% | +34.46% | +40.35% | -11.69% | |
| 1.76% | +13.79% | +34.45% | +40.41% | -11.68% | |
| 0.76% | +14.95% | +38.60% | +47.61% | -11.53% | |
| 1.76% | +13.77% | +34.46% | +40.40% | -11.69% | |
| 1.26% | +14.36% | +36.43% | +43.92% | -11.63% | |
| 1.01% | +14.68% | +37.48% | +45.75% | -11.62% | |
| 0.67% | +15.04% | +38.94% | +48.24% | -11.56% |
These classes hold the same portfolio, so the 7.89pp spread over 5 years is the cost difference between them — roughly 1.58pp a year — not a difference in what they own.
Fees & fund details
MFS Utilities Fund is an actively managed U.S. equity fund. 0% of MMUFX’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 88% of the fund’s equity).
- Asset class
- Equity
- Region
- United States
- Management
- Actively managed
- Fund type
- Open-end fund
- Expense ratio, by class
- 0.67% – 1.76%· MMUFX 1.01%
- Portfolio turnover
- 14.00% a year · as of 2026 Q1
Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
0 new
1 exited
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