MOORX — MassMutual Small Cap Opportunities Fund
Data updated: 2026-05-27
MOORX — MassMutual Small Cap Opportunities Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Small Cap Blend / Core Equity · $511.02M AUM · 1.10% expense ratio · 14.1% 1-yr return. From SEC regulatory filings.
MOORX Fund Overview
MOORX — MassMutual Small Cap Opportunities Fund is a US mutual fund managed by Massmutual Premier Funds, categorised as United States Small Cap Blend / Core Equity. 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: United States Small Cap Blend / Core Equity
- Assets under management: $511.02M
- 1-year return: 14.1%
- Ticker: MOORX
- SEC CIK: 0000927972
- SEC series ID: S000003788
- Share class ID: C000137078
MOORX Holdings
Top 10 holdings of MassMutual Small Cap Opportunities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Fixed Income Clearing Corp. | 2.50% |
| Enpro Inc | 2.10% |
| American Healthcare REIT Inc | 1.85% |
| BrightSpring Health Services Inc | 1.77% |
| Helmerich & Payne Inc | 1.77% |
| Kodiak Gas Services Inc | 1.75% |
| Columbia Banking System Inc | 1.74% |
| Northern Oil & Gas Inc | 1.70% |
| Wintrust Financial Corp | 1.66% |
| Outfront Media Inc | 1.63% |
MOORX Portfolio Allocation
Asset-class allocation of MassMutual Small Cap Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 97.5% |
| Cash & Equivalents | 2.5% |
MOORX Performance
Total returns for MOORX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -1.0% |
| 1 year | 14.1% |
| 3 years (annualised) | 11.0% |
| 5 years (annualised) | 5.1% |
MOORX Risk Information
Risk metrics for MOORX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 13.3%
MOORX Costs and Fees
MOORX costs about $110 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.10%
- Gross expense ratio: 1.10%
- Portfolio turnover: 40%
- Brokerage commissions: 6.93 bps of average net assets (SEC N-CEN)
MOORX Cashflows
Over the 12 months to 2026-03, MassMutual Small Cap Opportunities Fund had net inflows of $90.25M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $913.15K |
| 2026-02 | −$3.47M |
| 2026-01 | $1.59M |
| 2025-12 | $59.82M |
| 2025-11 | −$830.82K |
| 2025-10 | −$3.41M |
MOORX Debt Constituents
No individual debt constituents are reported in MassMutual Small Cap Opportunities Fund's latest SEC N-PORT filing.
MOORX Prospectus and SEC Filings
Official MassMutual Small Cap Opportunities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Small Cap Blend / Core Equity 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.