MPHLX
MassMutual High Yield Fund
MASSMUTUAL PREMIER FUNDS
Expense ratio1
0.85%
Net assets2
$507.49M
Holdings2
302
Category
Taxable Bond
2025 return3
8.51%

Investment objective & strategy

As of Jan. 30, 2026 · prospectus

Objective. This Fund seeks to achieve a high level of total return, with an emphasis on current income, by investing primarily in high yield debt and related securities.

Strategy. Principal Investment Strategies The Fund invests primarily in lower rated U.S. debt securities (junk or high yield bonds), including securities in default. Debt securities may include, for example, corporate bonds, mortgage-backed and asset-backed securities, and obligations of the U.S. Government or its agencies or instrumentalities. Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in lower rated fixed income securities (rated below Baa3 by Moodys, below BBB- by Standard & Poors or the equivalent by any other nationally recognized statistical rating organization (using the lower rating) or, if unrated, determined to be of below investment grade quality by the Funds subadviser, Barings LLC (Barings), or sub-subadviser, Baring … Principal Investment Strategies The Fund invests primarily in lower rated U.S. debt securities (junk or high yield bonds), including securities in default. Debt securities may include, for example, corporate bonds, mortgage-backed and asset-backed securities, and obligations of the U.S. Government or its agencies or instrumentalities. Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in lower rated fixed income securities (rated below Baa3 by Moodys, below BBB- by Standard & Poors or the equivalent by any other nationally recognized statistical rating organization (using the lower rating) or, if unrated, determined to be of below investment grade quality by the Funds subadviser, Barings LLC (Barings), or sub-subadviser, Baring International Investment Limited (BIIL)). The Fund may also invest in convertible securities, preferred stocks, warrants, bank loans, and other fixed income securities, including Rule 144A securities, of both U.S. and foreign issuers. Currently, Barings or BIIL does not expect that the Fund will invest more than 20% of its total assets in bank loans. The Fund may invest up to 15% of its total assets in securities that are not denominated in U.S. dollars including, but not limited to, corporate bonds, government and agency issues, Rule 144A securities, convertible securities, bank loans, mortgage-backed, and asset-backed securities. In pursuing its investment objective, the Fund may (but is not obligated to) use a wide variety of exchange-traded and over-the-counter derivatives, including futures contracts (for hedging purposes, to adjust various portfolio characteristics, including the duration (interest rate volatility) of the Funds portfolio, or as a substitute for direct investments); interest rate swaps (for hedging purposes or as a substitute for direct investments); total return swaps (for hedging purposes); and credit default swaps (for hedging purposes, to adjust various portfolio characteristics, including the duration (interest rate volatility) of the Funds portfolio, or as a substitute for direct investments). Use of derivatives by the Fund may create investment leverage. The Fund may enter into repurchase agreement transactions. The Fund may at times have significant exposure to one or more industries or sectors. The Fund may hold a portion of its assets in cash or cash equivalents. The Fund may enter into reverse repurchase agreement transactions. Under normal market conditions, the Fund expects to have a dollar-weighted average portfolio maturity ranging from 4 to 10 years. The Funds portfolio may include securities with ?maturities outside this range, and the range may change from time to time. In selecting the Funds investments, ?Barings or BIIL employs a bottom-up, fundamental approach to its credit analysis, which focuses first on a specific issuers financial strength, among other things, before considering trends or macro economic factors. Barings or BIIL prefers companies that it believes possess one or more of the following characteristics: strong business position, ability to generate free cash flow to repay debt, favorable capital structure, high level of fixed assets, conservative accounting, and respected management or equity sponsor(s) (such management and sponsors would have a good reputation and/or have had prior positive relations with Barings or BIIL). The Fund expects that it will engage in active and frequent trading and so will typically have a relatively high portfolio turnover rate.

Allocation by sector

As of March 31, 2026 · N-PORT
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Portfolio moves

Dec 31, 2025 → Mar 31, 2026
Opened
60
Exited
67
Increased
43
Decreased
54
Unchanged
147

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

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Advisers

As of September 30, 2025 · N-CEN
FirmRole
MML Investment Advisers, LLC Adviser
Baring International Investment Limited Sub-adviser
Barings LLC Sub-adviser

Footnotes

  1. Expense ratio as of January 30, 2026, from the fund's prospectus.
  2. Net assets and holdings count as of March 31, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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