Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000200489 | |||
| Series S000002437 | MFS International New Discovery Fund | ||
| Class/Contract C000006520 | A | MIDAX | |
| Class/Contract C000006521 | R4 | MIDJX | |
| Class/Contract C000006522 | 529A | EAIDX | |
| Class/Contract C000006523 | 529B | EBIDX | |
| Class/Contract C000006524 | 529C | ECIDX | |
| Class/Contract C000006525 | B | MIDBX | |
| Class/Contract C000006526 | C | MIDCX | |
| Class/Contract C000006527 | I | MWNIX | |
| Class/Contract C000006529 | R1 | MIDGX | |
| Class/Contract C000006531 | R2 | MIDRX | |
| Class/Contract C000006532 | R3 | MIDHX | |
| Class/Contract C000116933 | R6 | MIDLX | |
| Status | Name | Ticker Symbol | |
| CIK 0000200489 | |||
| Series S000002438 | MFS Research Fund | ||
| Class/Contract C000006533 | A | MFRFX | |
| Class/Contract C000006534 | R4 | MFRJX | |
| Class/Contract C000006538 | B | MFRBX | |
| Class/Contract C000006539 | C | MFRCX | |
| Class/Contract C000006540 | I | MRFIX | |
| Class/Contract C000006542 | R1 | MFRLX | |
| Class/Contract C000006544 | R2 | MSRRX | |
| Class/Contract C000006545 | R3 | MFRHX | |
| Class/Contract C000034431 | R6 | MFRKX | |
| Status | Name | Ticker Symbol | |
| CIK 0000200489 | |||
| Series S000002439 | MFS Total Return Fund | ||
| Class/Contract C000006546 | A | MSFRX | |
| Class/Contract C000006547 | R4 | MSFJX | |
| Class/Contract C000006548 | 529A | EATRX | |
| Class/Contract C000006549 | 529B | EBTRX | |
| Class/Contract C000006550 | 529C | ECTRX | |
| Class/Contract C000006551 | B | MTRBX | |
| Class/Contract C000006552 | C | MTRCX | |
| Class/Contract C000006553 | I | MTRIX | |
| Class/Contract C000006555 | R1 | MSFFX | |
| Class/Contract C000006557 | R2 | MTRRX | |
| Class/Contract C000006558 | R3 | MSFHX | |
| Class/Contract C000116934 | R6 | MSFKX | |
IRS No.: 042468583 | State of Incorp.: MA | Fiscal Year End: 0930
Type: N-CSR | Act: 40 | File No.: 811-02031 | Film No.: 171227480
