MBCNX — MassMutual Blue Chip Growth Fund
Data updated: 2026-05-27
MBCNX — MassMutual Blue Chip Growth Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Large Cap Growth Equity · $1.80B AUM · 1.36% expense ratio · 13.3% 1-yr return. From SEC regulatory filings.
MBCNX Fund Overview
MBCNX — MassMutual Blue Chip Growth Fund is a US mutual fund managed by Massmutual Select Funds, categorised as United States Large Cap Growth 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 Select Funds
- Category: United States Large Cap Growth Equity
- Assets under management: $1.80B
- 1-year return: 13.3%
- Ticker: MBCNX
- SEC CIK: 0000916053
- SEC series ID: S000003658
- Share class ID: C000010178
MBCNX Holdings
Top 10 holdings of MassMutual Blue Chip Growth Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corp | 13.67% |
| Microsoft Corp | 7.31% |
| Amazon.com Inc | 6.22% |
| Meta Platforms Inc | 5.85% |
| Apple Inc | 5.27% |
| Alphabet Inc | 4.97% |
| Tesla Inc | 4.64% |
| Netflix Inc | 3.99% |
| Visa Inc | 3.61% |
| Alphabet Inc | 3.24% |
MBCNX Portfolio Allocation
Asset-class allocation of MassMutual Blue Chip Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.5% |
| Cash & Equivalents | 1.3% |
| Fixed Income | 0.1% |
MBCNX Performance
Total returns for MBCNX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -11.6% |
| 1 year | 13.3% |
| 3 years (annualised) | 20.3% |
| 5 years (annualised) | 9.3% |
MBCNX Risk Information
Risk metrics for MBCNX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 15.2%
MBCNX Costs and Fees
MBCNX costs about $136 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.36%
- Gross expense ratio: 1.36%
- Portfolio turnover: 14%
- Brokerage commissions: 0.71 bps of average net assets (SEC N-CEN)
MBCNX Cashflows
Over the 12 months to 2026-03, MassMutual Blue Chip Growth Fund had net inflows of $223.63M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$25.61M |
| 2026-02 | −$40.16M |
| 2026-01 | −$43.53M |
| 2025-12 | $650.35M |
| 2025-11 | −$24.69M |
| 2025-10 | −$23.21M |
MBCNX Debt Constituents
Largest debt holdings of MassMutual Blue Chip Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Carvana Co. | 0.08% |
| Carvana Co. | 0.06% |
MBCNX Prospectus and SEC Filings
Official MassMutual Blue Chip Growth Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Large Cap Growth 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.