Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056353 | Fidelity Flex Inflation-Protected Bond Index Fund | ||
| Class/Contract C000177580 | Fidelity Flex Inflation-Protected Bond Index Fund | FBUIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056354 | Fidelity Flex U.S. Bond Index Fund | ||
| Class/Contract C000177581 | Fidelity Flex U.S. Bond Index Fund | FIBUX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056355 | Fidelity Flex International Index Fund | ||
| Class/Contract C000177582 | Fidelity Flex International Index Fund | FITFX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056356 | Fidelity Flex Large Cap Growth Index Fund | ||
| Class/Contract C000177583 | Fidelity Flex Large Cap Growth Index Fund | FCLGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056357 | Fidelity Flex Large Cap Value Index Fund | ||
| Class/Contract C000177584 | Fidelity Flex Large Cap Value Index Fund | FVCEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056358 | Fidelity Flex Mid Cap Index Fund | ||
| Class/Contract C000177585 | Fidelity Flex Mid Cap Index Fund | FLAPX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056359 | Fidelity Flex Real Estate Index Fund | ||
| Class/Contract C000177586 | Fidelity Flex Real Estate Index Fund | FLXRX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056360 | Fidelity Flex Short-Term Bond Fund | ||
| Class/Contract C000177587 | Fidelity Flex Short-Term Bond Fund | FBSTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056361 | Fidelity Flex Short-Term Treasury Bond Index Fund | ||
| Class/Contract C000177588 | Fidelity Flex Short-Term Treasury Bond Index Fund | FUSTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000035315 | |||
| Series S000056362 | Fidelity Flex Small Cap Index Fund | ||
| Class/Contract C000177589 | Fidelity Flex Small Cap Index Fund | FLXSX | |
IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 0430
Type: 485BPOS | Act: 33 | File No.: 002-41839 | Film No.: 17674054
IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 0430
Type: 485BPOS | Act: 40 | File No.: 811-02105 | Film No.: 17674055