MPTRX — MassMutual Total Return Bond Fund
Data updated: 2025-08-25
MPTRX — MassMutual Total Return Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Total / Aggregate Bond · $435.18M AUM · 0.83% expense ratio · 5.8% 1-yr return. From SEC regulatory filings.
MPTRX Fund Overview
MPTRX — MassMutual Total Return Bond Fund is a US mutual fund managed by Massmutual Select Funds, categorised as Long Total / Aggregate 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 Select Funds
- Category: Long Total / Aggregate Bond
- Assets under management: $435.18M
- 1-year return: 5.8%
- Ticker: MPTRX
- SEC CIK: 0000916053
- SEC series ID: S000029393
- Share class ID: C000140415
MPTRX Holdings
Top 10 holdings of MassMutual Total Return Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Fixed Income Clearing Corp | 8.93% |
| United States Treasury | 5.68% |
| United States Treasury | 5.14% |
| United States Treasury | 4.25% |
| United States Treasury | 3.30% |
| United States Treasury | 2.63% |
| Fannie Mae | 1.50% |
| United States Treasury | 1.36% |
| Government National Mortgage Association | 1.28% |
| Umbs, Tba | 1.26% |
MPTRX Portfolio Allocation
Asset-class allocation of MassMutual Total Return Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 55.0% |
| Fixed Income | 42.8% |
| Cash & Equivalents | 10.3% |
| Loans | 1.8% |
| Real Estate | 0.3% |
| Equity | 0.2% |
MPTRX Performance
Total returns for MPTRX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| 1 year | 5.8% |
| 3 years (annualised) | 1.9% |
| 5 years (annualised) | -1.1% |
MPTRX Risk Information
Risk metrics for MPTRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 6.0%
MPTRX Costs and Fees
MPTRX costs about $83 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.83%
- Gross expense ratio: 0.88%
- Portfolio turnover: 508%
- Brokerage commissions: 0.29 bps of average net assets (SEC N-CEN)
MPTRX Cashflows
Over the 12 months to 2025-06, MassMutual Total Return Bond Fund had net outflows of $290.29M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2025-06 | −$4.54M |
| 2025-05 | −$8.66M |
| 2025-04 | −$9.03M |
| 2025-03 | −$124.15M |
| 2025-02 | −$35.50M |
| 2025-01 | −$18.78M |
MPTRX Debt Constituents
Largest debt holdings of MassMutual Total Return Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 5.68% |
| United States Treasury | 5.14% |
| United States Treasury | 4.25% |
| United States Treasury | 3.30% |
| United States Treasury | 2.63% |
| United States Treasury | 1.36% |
| United States Treasury | 1.19% |
| Bank of America Corp | 0.58% |
| Goldman Sachs Group, Inc. | 0.56% |
| Farmers Exchange Cap Iii | 0.53% |
MPTRX Prospectus and SEC Filings
Official MassMutual Total Return Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Total / Aggregate 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.