Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000012907 | Nasdaq-100 Index Fund | ||
| Class/Contract C000034876 | Nasdaq-100 Index Fund | USNQX | |
| Class/Contract C000179381 | Nasdaq-100 Index Fund R6 Shares | URNQX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000012915 | S&P 500 Index Fund | ||
| Class/Contract C000034884 | S&P 500 Index Fund-Member Shares | USSPX | |
| Class/Contract C000034885 | S&P 500 Index Fund-Reward Shares | USPRX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000012918 | Total Return Strategy Fund | ||
| Class/Contract C000034888 | Total Return Strategy Fund Shares | USTRX | |
| Class/Contract C000129294 | Total Return Strategy Fund Institutional Shares | UTRIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000012941 | Extended Market Index Fund | ||
| Class/Contract C000034943 | Extended Market Index Fund | USMIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022882 | Global Managed Volatility Fund | ||
| Class/Contract C000066372 | Global Managed Volatility Fund Institutional Shares | UGOFX | |
| Class/Contract C000129296 | Global Managed Volatility Fund Shares | UGMVX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022883 | Target Retirement Income Fund | ||
| Class/Contract C000066373 | Target Retirement Income Fund | URINX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022884 | Target Retirement 2020 Fund | ||
| Class/Contract C000066374 | Target Retirement 2020 Fund | URTNX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022885 | Target Retirement 2030 Fund | ||
| Class/Contract C000066375 | Target Retirement 2030 Fund | URTRX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022886 | Target Retirement 2040 Fund | ||
| Class/Contract C000066376 | Target Retirement 2040 Fund | URFRX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000022887 | Target Retirement 2050 Fund | ||
| Class/Contract C000066377 | Target Retirement 2050 Fund | URFFX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000030169 | Ultra Short-Term Bond Fund | ||
| Class/Contract C000092834 | Ultra Short-Term Bond Fund Shares | UUSTX | |
| Class/Contract C000130753 | Ultra Short-Term Bond Fund Institutional Shares | UUSIX | |
| Class/Contract C000179382 | Ultra Short-Term Bond Fund R6 Share | URUSX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000030170 | Real Return Fund | ||
| Class/Contract C000092835 | Real Return Fund Shares | USRRX | |
| Class/Contract C000092836 | Real Return Fund Institutional Shares | UIRRX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000041439 | Target Retirement 2060 Fund | ||
| Class/Contract C000128656 | Target Retirement 2060 Fund | URSIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000908695 | |||
| Series S000041440 | Flexible Income Fund | ||
| Class/Contract C000128657 | Flexible Income Fund Shares | USFIX | |
| Class/Contract C000128658 | Flexible Income Fund Institutional Shares | UIFIX | |
| Class/Contract C000128659 | Flexible Income Fund Adviser Shares | UAFIX | |
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 0331
Type: N-CEN | Act: 40 | File No.: 811-07852 | Film No.: 19684559