MBCZX Fees and Costs — MassMutual Blue Chip Growth Fund, Class I

Data updated: 2026-08-27

The net expense ratio is 0.66%: a 0.62% management fee plus 0.04% other expenses. There are no sales loads or redemption fees. In fiscal 2025 the fund paid $165K in broker commissions, 0.0071% of average net assets, and portfolio turnover was 14%.

MBCZX Fees and Expenses

Annual operating expenses and sales charges of MBCZX. Prospectus, as of September 30, 2025.

Annual operating expenses
Management fee0.62%
12b-1 fee0.00%
Other expenses0.04%
Gross expense ratio0.66%
Fee waiver—
Net expense ratio0.66%
Sales charges
Max front load0.00%
Max deferred load0.00%
Redemption fee—
Expense limitation in place (N-CEN)No
Fees waived or reduced during the yearNo
Waived fees subject to recoupmentNo

MBCZX Costs Over Time

On $10,000 invested in MBCZX, assuming 5% a year before costs, total costs come to $420 over 5 years, cutting the return by 0.70% a year. Illustration, not a forecast: it assumes today's net expense ratio throughout (a fee waiver may end).

$10,000 investedSell after 1 yearSell after 3 yearsSell after 5 years
Value before costs$10,500$11,576$12,763
Fund expenses (net expense ratio 0.66%)$69$217$378
Trading costs (broker commissions)$1$2$4
Lost growth on money paid in costs$0$11$38
Total costs$70$230$420
Value after costs$10,430$11,346$12,343
Impact on return, per year0.70%0.70%0.70%

MBCZX Trading Costs

Brokerage costs reported on SEC Form N-CEN for the fiscal year ending September 30, 2025.

  • Explicit cost rate (commissions ÷ average net assets): 0.0071%
  • Total broker commissions: $165K
  • Bought from dealers (principal trades, not a cost): $3.8B
  • Portfolio turnover (prospectus): 14%
  • Securities on loan, average value: $12.2M
  • Net income from securities lending: $57K (0.002% of average net assets)

MBCZX Agency Brokers

Commissions paid.

BrokerAmountShare
Capital Institutional Services, Inc.$53K38.60%
Virtu Americas LLC$16K11.86%
Morgan Stanley & Co. LLC$16K11.65%
J.P. Morgan Securities LLC$12K8.77%
Barclays Capital Inc.$10K7.31%
Liquidnet, Inc.$8K5.71%
RBC Capital Markets, LLC$6K4.39%
Piper Sandler & Co.$6K4.35%
BMO Capital Markets Corp.$6K4.05%
Goldman Sachs & Co. LLC$5K3.29%

MBCZX Dealer Counterparties

Securities bought directly from dealers (principal trades).

BrokerAmountShare
State Street Bank and Trust Company$3.7B99.00%
Morgan Stanley & Co. LLC$25.9M0.69%
Goldman Sachs & Co. LLC$9.1M0.24%
J.P. Morgan Securities LLC$2.6M0.07%
T. Rowe Price Investment Services, Inc.$190.00%

MassMutual Blue Chip Growth Fund Share Classes

Net expense ratio and maximum front-end load of each share class, cheapest first.

TickerClassNet expense ratioFront load
MBCZXClass I0.66%none
MBCSXClass R50.76%none
MMZMXClass Y0.76%none
MBCYXService Class0.86%none
MBCLXAdministrative Class0.96%none
MBGFXClass R41.11%none
MBCGXClass A1.16%5.50%
MBCNXClass R31.36%none

For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.