MMUKX — MFS Utilities Fund
Data updated: 2026-06-29
MMUKX — MFS Utilities Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Utilities Equity · $2.82B AUM · 0.67% expense ratio · 26.2% 1-yr return. From SEC regulatory filings.
MMUKX Fund Overview
MMUKX — MFS Utilities Fund is a US mutual fund managed by Mfs Series Trust VI, categorised as United States Utilities Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Mfs Series Trust VI
- Category: United States Utilities Equity
- Assets under management: $2.82B
- 1-year return: 26.2%
- Ticker: MMUKX
- SEC CIK: 0000863032
- SEC series ID: S000002470
- Share class ID: C000070410
MMUKX Holdings
Top 10 holdings of MFS Utilities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NextEra Energy, Inc. | 13.32% |
| Constellation Energy Corp. | 7.00% |
| PG&E Corp. | 5.59% |
| Xcel Energy, Inc. | 5.37% |
| Sempra | 4.88% |
| American Electric Power Co., Inc. | 4.87% |
| DTE Energy Co. | 4.08% |
| Ameren Corp. | 3.83% |
| Dominion Energy, Inc. | 3.79% |
| Southern Co. (The) | 3.69% |
MMUKX Portfolio Allocation
Asset-class allocation of MFS Utilities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.1% |
| Cash & Equivalents | 0.8% |
MMUKX Performance
Total returns for MMUKX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 12.4% |
| 1 year | 26.2% |
| 3 years (annualised) | 11.6% |
| 5 years (annualised) | 9.2% |
MMUKX Risk Information
Risk metrics for MMUKX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 13.4%
MMUKX Costs and Fees
MMUKX costs about $67 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.67%
- Gross expense ratio: 0.68%
- Portfolio turnover: 14%
- Brokerage commissions: 1.35 bps of average net assets (SEC N-CEN)
MMUKX Cashflows
Over the 12 months to 2026-04, MFS Utilities Fund had net outflows of $128.10M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$10.53M |
| 2026-03 | −$3.04M |
| 2026-02 | −$22.39M |
| 2026-01 | −$16.56M |
| 2025-12 | $36.41M |
| 2025-11 | −$15.40M |
MMUKX Debt Constituents
No individual debt constituents are reported in MFS Utilities Fund's latest SEC N-PORT filing.
MMUKX Prospectus and SEC Filings
Official MFS Utilities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Utilities Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.