MHIIX — MFS High Income Fund
Data updated: 2026-06-29
MHIIX — MFS High Income Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Corporate Bond · $1.96B AUM · 0.60% expense ratio · 8.8% 1-yr return. From SEC regulatory filings.
MHIIX Fund Overview
MHIIX — MFS High Income Fund is a US mutual fund managed by Mfs Series Trust III, categorised as Intermediate Corporate Bond. 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 III
- Category: Intermediate Corporate Bond
- Assets under management: $1.96B
- 1-year return: 8.8%
- Ticker: MHIIX
- SEC CIK: 0000225604
- SEC series ID: S000002427
- Share class ID: C000006478
MHIIX Holdings
Top 10 holdings of MFS High Income Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| MFS Institutional Money Market Portfolio | 3.08% |
| iShares Broad USD High Yield Corporate Bond ETF | 1.49% |
| CCO Holdings LLC | 0.87% |
| Carvana Co. | 0.74% |
| Jane Street Group | 0.71% |
| Quikrete Holdings, Inc. | 0.68% |
| Albertsons Cos., Inc. | 0.68% |
| PennyMac Financial Services, Inc. | 0.63% |
| Service Corp. International | 0.62% |
| RB Global Holdings, Inc. | 0.61% |
MHIIX Portfolio Allocation
Asset-class allocation of MFS High Income Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 94.9% |
| Cash & Equivalents | 3.1% |
| Other | 1.5% |
MHIIX Performance
Total returns for MHIIX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.9% |
| 1 year | 8.8% |
| 3 years (annualised) | 8.1% |
| 5 years (annualised) | 3.9% |
MHIIX Risk Information
Risk metrics for MHIIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.0%
MHIIX Costs and Fees
MHIIX costs about $60 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.60%
- Gross expense ratio: 0.61%
- Portfolio turnover: 51%
- Brokerage commissions: 0.12 bps of average net assets (SEC N-CEN)
MHIIX Cashflows
Over the 12 months to 2026-04, MFS High Income Fund had net inflows of $75.03M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$3.44M |
| 2026-03 | −$13.20M |
| 2026-02 | $6.08M |
| 2026-01 | $2.76M |
| 2025-12 | $2.87M |
| 2025-11 | −$1.15M |
MHIIX Debt Constituents
Largest debt holdings of MFS High Income Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| CCO Holdings LLC | 0.87% |
| Carvana Co. | 0.74% |
| Jane Street Group | 0.71% |
| Quikrete Holdings, Inc. | 0.68% |
| Albertsons Cos., Inc. | 0.68% |
| PennyMac Financial Services, Inc. | 0.63% |
| Service Corp. International | 0.62% |
| RB Global Holdings, Inc. | 0.61% |
| TransDigm, Inc. | 0.59% |
| CCO Holdings LLC | 0.59% |
MHIIX Prospectus and SEC Filings
Official MFS High Income Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate Corporate Bond 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.