| Underlying Asset | United Nations (UN) |
| Underwriter | Universal Life Insurance |
| Underwriting | Unlevered Beta |
| Unearned Income | Unlevered Free Cash Flow (UFCF) |
| Unemployment | Unlimited Liability |
| Unemployment Rate | Unsecured Loan |
| Unicorn | Upside |
| Unified Managed Account (UMA) | U.S. Dollar Index (USDX) |
| Uniform Distribution | U.S. Savings Bonds |
| Uniform Gifts to Minors Ac (UGMA) | Utilities Sector |
| Uniform Transfers to Minors Act (UTMA) | Utility |
| Unilateral Contract | Unit Investment Trust (UIT) |