MRIBX Fees and Costs — MFS Research International Fund, Class B
Data updated: 2026-07-27
The net expense ratio is 1.74%: a 0.63% management fee, a 1.00% 12b-1 fee plus 0.12% other expenses, less a 0.01% fee waiver. This share class carries a deferred sales charge of up to 4.00%. In fiscal 2025 the fund paid $3.1M in broker commissions, 0.0190% of average net assets, and portfolio turnover was 27%.
MRIBX Fees and Expenses
Annual operating expenses and sales charges of MRIBX. Prospectus, as of August 31, 2025.
| Annual operating expenses | |
|---|---|
| Management fee | 0.63% |
| 12b-1 fee | 1.00% |
| Other expenses | 0.12% |
| Gross expense ratio | 1.75% |
| Fee waiver | −0.01% |
| Net expense ratio | 1.74% |
| Sales charges | |
|---|---|
| Max front load | 0.00% |
| Max deferred load | 4.00% |
| Redemption fee | — |
| Expense limitation in place (N-CEN) | Yes |
| Fees waived or reduced during the year | Yes |
| Waived fees subject to recoupment | No |
MRIBX Costs Over Time
On $10,000 invested in MRIBX, assuming 5% a year before costs, total costs come to $1,084 over 5 years, cutting the return by 1.85% 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 |
| Sales charges | $413 | $0 | $0 |
| Fund expenses (net expense ratio 1.74%) | $183 | $566 | $973 |
| Trading costs (broker commissions) | $2 | $6 | $11 |
| Lost growth on money paid in costs | $0 | $28 | $100 |
| Total costs | $597 | $600 | $1,084 |
| Value after costs | $9,903 | $10,976 | $11,679 |
| Impact on return, per year | 5.97% | 1.85% | 1.85% |
MRIBX Trading Costs
Brokerage costs reported on SEC Form N-CEN for the fiscal year ending August 31, 2025.
- Explicit cost rate (commissions ÷ average net assets): 0.0190%
- Total broker commissions: $3.1M
- Bought from dealers (principal trades, not a cost): —
- Portfolio turnover (prospectus): 27%
- Securities on loan, average value: $50.2M
- Net income from securities lending: $131K (0.001% of average net assets)
MRIBX Agency Brokers
Commissions paid.
| Broker | Amount | Share |
|---|---|---|
| BofA Securities, Inc. | $482K | 18.39% |
| Morgan Stanley & Co. LLC | $380K | 14.51% |
| J.P. Morgan Securities LLC | $369K | 14.06% |
| Jefferies LLC | $338K | 12.90% |
| BNP Paribas Securities Corp. | $263K | 10.03% |
| Goldman Sachs & Co. LLC | $255K | 9.74% |
| UBS Securities LLC | $240K | 9.14% |
| Citigroup Global Markets Inc. | $105K | 3.99% |
| RBC Capital Markets, LLC | $100K | 3.80% |
| Itau International Securities Inc. | $90K | 3.43% |
MFS Research International Fund Share Classes
Net expense ratio and maximum front-end load of each share class, cheapest first.
| Ticker | Class | Net expense ratio | Front load |
|---|---|---|---|
| MRSKX | Class R6 | 0.64% | none |
| MRSIX | Class I | 0.74% | none |
| MRSJX | Class R4 | 0.74% | none |
| MRSAX | Class A | 0.99% | 5.75% |
| MRSHX | Class R3 | 0.99% | none |
| MRSRX | Class R2 | 1.24% | none |
| MRIBX | Class B | 1.74% | none |
| MRICX | Class C | 1.74% | none |
| MRSGX | Class R1 | 1.74% | 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.