MMJBX — MassMutual Clinton Municipal Credit Opportunities Fund
Data updated: 2026-05-27
MMJBX — MassMutual Clinton Municipal Credit Opportunities Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $56.08M AUM · 0.54% expense ratio · 3.4% 1-yr return. From SEC regulatory filings.
MMJBX Fund Overview
MMJBX — MassMutual Clinton Municipal Credit Opportunities Fund is a US mutual fund managed by MassMutual Advantage Funds, categorised as Long Municipal - National 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 Advantage Funds
- Category: Long Municipal - National Bond
- Assets under management: $56.08M
- 1-year return: 3.4%
- Ticker: MMJBX
- SEC CIK: 0001859808
- SEC series ID: S000083940
- Share class ID: C000248054
MMJBX Holdings
Top 10 holdings of MassMutual Clinton Municipal Credit Opportunities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| County of Jefferson AL Sewer Revenue | 4.30% |
| City of New York NY | 4.23% |
| State of Illinois | 4.20% |
| Dutchess County Local Development Corp | 4.12% |
| City of Chicago IL | 4.08% |
| Texas Municipal Gas Acquisition & Supply Corp VI | 4.00% |
| Empire State Development Corp | 3.85% |
| Shelby County Health Educational & Housing Facilities Board | 3.77% |
| Central Plains Energy Project | 3.74% |
| Colorado Health Facilities Authority | 3.62% |
MMJBX Portfolio Allocation
Asset-class allocation of MassMutual Clinton Municipal Credit Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 99.0% |
MMJBX Performance
Total returns for MMJBX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.1% |
| 1 year | 3.4% |
| 3 years (annualised) | 1.2% |
MMJBX Risk Information
Risk metrics for MMJBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 5.3%
MMJBX Costs and Fees
MMJBX costs about $54 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.54%
- Gross expense ratio: 0.97%
- Portfolio turnover: 26%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MMJBX Cashflows
Over the 12 months to 2026-03, MassMutual Clinton Municipal Credit Opportunities Fund had net inflows of $7.89M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $668.94K |
| 2026-02 | $182.51K |
| 2026-01 | $170.87K |
| 2025-12 | $3.22M |
| 2025-11 | $2.00M |
| 2025-10 | $762.71K |
MMJBX Debt Constituents
Largest debt holdings of MassMutual Clinton Municipal Credit Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| County of Jefferson AL Sewer Revenue | 4.30% |
| City of New York NY | 4.23% |
| State of Illinois | 4.20% |
| Dutchess County Local Development Corp | 4.12% |
| City of Chicago IL | 4.08% |
| Texas Municipal Gas Acquisition & Supply Corp VI | 4.00% |
| Empire State Development Corp | 3.85% |
| Shelby County Health Educational & Housing Facilities Board | 3.77% |
| Central Plains Energy Project | 3.74% |
| Colorado Health Facilities Authority | 3.62% |
MMJBX Prospectus and SEC Filings
Official MassMutual Clinton Municipal Credit Opportunities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Municipal - National 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.