MPHRX — MassMutual High Yield Fund
Data updated: 2026-05-27
MPHRX — MassMutual High Yield Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Short Corporate Bond · $507.49M AUM · 1.00% expense ratio · 7.4% 1-yr return. From SEC regulatory filings.
MPHRX Fund Overview
MPHRX — MassMutual High Yield Fund is a US mutual fund managed by Massmutual Premier Funds, categorised as Short 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: Massmutual Premier Funds
- Category: Short Corporate Bond
- Assets under management: $507.49M
- 1-year return: 7.4%
- Ticker: MPHRX
- SEC CIK: 0000927972
- SEC series ID: S000003779
- Share class ID: C000137070
MPHRX Holdings
Top 10 holdings of MassMutual High Yield Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| State Street Global Advisors | 6.19% |
| Fixed Income Clearing Corp. | 6.17% |
| Superior Plus/gen Prtnr | 1.84% |
| Seaspan Corp. | 1.69% |
| Pra Group, Inc. | 1.66% |
| Itt Holdings LLC | 1.63% |
| California Buyer/atlanti | 1.51% |
| Sunoco LP | 1.43% |
| Team Health Holdings, Inc. | 1.31% |
| Lightning Power LLC | 1.26% |
MPHRX Portfolio Allocation
Asset-class allocation of MassMutual High Yield Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 88.4% |
| Cash & Equivalents | 12.4% |
| Loans | 4.7% |
| Equity | 0.1% |
MPHRX Performance
Total returns for MPHRX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.2% |
| 1 year | 7.4% |
| 3 years (annualised) | 8.6% |
| 5 years (annualised) | 4.4% |
MPHRX Risk Information
Risk metrics for MPHRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.7%
MPHRX Costs and Fees
MPHRX costs about $100 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.00%
- Gross expense ratio: 1.05%
- Portfolio turnover: 97%
- Brokerage commissions: 0.09 bps of average net assets (SEC N-CEN)
MPHRX Cashflows
Over the 12 months to 2026-03, MassMutual High Yield Fund had net inflows of $134.21M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$33.70M |
| 2026-02 | $9.97M |
| 2026-01 | $5.14M |
| 2025-12 | $38.93M |
| 2025-11 | $19.24M |
| 2025-10 | $4.85M |
MPHRX Debt Constituents
Largest debt holdings of MassMutual High Yield Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Superior Plus/gen Prtnr | 1.84% |
| Seaspan Corp. | 1.69% |
| Pra Group, Inc. | 1.66% |
| Itt Holdings LLC | 1.63% |
| California Buyer/atlanti | 1.51% |
| Sunoco LP | 1.43% |
| Team Health Holdings, Inc. | 1.31% |
| Lightning Power LLC | 1.26% |
| Talen Energy Supply LLC | 1.23% |
| Jefferson Capital Holdin | 1.11% |
MPHRX Prospectus and SEC Filings
Official MassMutual High Yield Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Short 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.