MFRKX Fees and Costs — MFS Research Fund, Class R6
Data updated: 2026-08-25
The net expense ratio is 0.44%: a 0.42% management fee plus 0.03% other expenses, less a 0.01% fee waiver. There are no sales loads or redemption fees. In fiscal 2025 the fund paid $649K in broker commissions, 0.0081% of average net assets, and portfolio turnover was 41%.
MFRKX Fees and Expenses
Annual operating expenses and sales charges of MFRKX. Prospectus, as of September 30, 2025.
| Annual operating expenses | |
|---|---|
| Management fee | 0.42% |
| 12b-1 fee | 0.00% |
| Other expenses | 0.03% |
| Gross expense ratio | 0.45% |
| Fee waiver | −0.01% |
| Net expense ratio | 0.44% |
| Sales charges | |
|---|---|
| Max front load | 0.00% |
| Max deferred load | 0.00% |
| Redemption fee | — |
| Expense limitation in place (N-CEN) | Yes |
| Fees waived or reduced during the year | Yes |
| Waived fees subject to recoupment | No |
MFRKX Costs Over Time
On $10,000 invested in MFRKX, assuming 5% a year before costs, total costs come to $283 over 5 years, cutting the return by 0.47% a year. Illustration, not a forecast: it assumes today's net expense ratio throughout (a fee waiver may end).
| $10,000 invested | Sell after 1 year | Sell after 3 years | Sell after 5 years |
|---|---|---|---|
| Value before costs | $10,500 | $11,576 | $12,763 |
| Fund expenses (net expense ratio 0.44%) | $46 | $145 | $253 |
| Trading costs (broker commissions) | $1 | $3 | $5 |
| Lost growth on money paid in costs | $0 | $7 | $26 |
| Total costs | $47 | $155 | $283 |
| Value after costs | $10,453 | $11,421 | $12,479 |
| Impact on return, per year | 0.47% | 0.47% | 0.47% |
MFRKX 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): 0.0081%
- Total broker commissions: $649K
- Bought from dealers (principal trades, not a cost): $18.0M
- Portfolio turnover (prospectus): 41%
- Securities on loan, average value: $114K
- Net income from securities lending: $3K (0.000% of average net assets)
MFRKX Agency Brokers
Commissions paid.
| Broker | Amount | Share |
|---|---|---|
| J.P. Morgan Securities LLC | $149K | 29.61% |
| Jefferies LLC | $74K | 14.68% |
| BofA Securities, Inc. | $47K | 9.31% |
| Citigroup Global Markets Inc. | $46K | 9.04% |
| Goldman Sachs & Co. LLC | $45K | 8.99% |
| UBS Securities LLC | $42K | 8.41% |
| BMO Capital Markets Corp. | $31K | 6.09% |
| Cowen Execution Services LLC | $24K | 4.73% |
| Fidelity Brokerage Services LLC | $23K | 4.61% |
| JonesTrading Institutional Services LLC | $23K | 4.51% |
MFRKX Dealer Counterparties
Securities bought directly from dealers (principal trades).
| Broker | Amount | Share |
|---|---|---|
| J.P. Morgan Securities LLC | $13.1M | 72.66% |
| State Street Global Markets, LLC | $4.2M | 23.10% |
| Bank of New York Mellon Corp. | $763K | 4.24% |
MFS Research Fund Share Classes
Net expense ratio and maximum front-end load of each share class, cheapest first.
| Ticker | Class | Net expense ratio | Front load |
|---|---|---|---|
| MFRKX | Class R6 | 0.44% | none |
| MFRJX | Class R4 | 0.50% | none |
| MRFIX | Class I | 0.50% | none |
| MFRFX | Class A | 0.75% | 5.75% |
| MFRHX | Class R3 | 0.75% | none |
| MSRRX | Class R2 | 1.00% | none |
| MFRBX | Class B | 1.50% | none |
| MFRCX | Class C | 1.50% | none |
| MFRLX | Class R1 | 1.50% | 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.