| UCO | ProShares Ultra Bloomberg Crude Oil | | |
| UCON | First Trust Smith Unconstrained Bond ETF | | |
| UCOP | ProShares Ultra Copper K-1 Free ETF | | |
| UCRD | VictoryShares Corporate Bond ETF | | |
| UCTX | Corgi UCTT 2x Daily ETF | | |
| UDEC | Innovator U.S. Equity Ultra Buffer ETF - December | | |
| UDI | USCF Dividend Income Fund | | |
| UDIV | Franklin U.S. Core Dividend Tilt Index ETF | | |
| UDN | Invesco DB USD Index Bearish ETF | | |
| UDOW | ProShares UltraPro Dow30 | | |
| UEVM | VictoryShares Emerging Markets Value Momentum ETF | | |
| UFEB | Innovator U.S. Equity Ultra Buffer ETF - February | | |
| UFIV | US Treasury 5 Year Note ETF | | |
| UFO | Procure Space ETF | | |
| UFOD | Tuttle Capital UFO Disclosure ETF | | |
| UFOX | Defiance Space and Connective Tech ETF | | |
| UGA | United States Gasoline Fund LP | | |
| UGE | ProShares Ultra Consumer Staples | | |
| UGL | ProShares Ultra Gold | | |
| UGLD | Direxion Daily Gold Bull 2X ETF | | |
| UITB | VictoryShares Core Intermediate Bond ETF | | |
| UIVM | VictoryShares International Value Momentum ETF | | |
| UJAN | Innovator U.S. Equity Ultra Buffer ETF - January | | |
| UJB | ProShares Ultra High Yield ETF | | |
| UJUL | Innovator U.S. Equity Ultra Buffer ETF - July | | |
| UJUN | Innovator U.S. Equity Ultra Buffer ETF - June | | |
| ULE | ProShares Ultra Euro | | |
| ULST | State Street Ultra Short Term Bond ETF | | |
| ULTI | REX IncomeMax Option Strategy ETF | | |
| ULTY | YieldMax Ultra Option Income Strategy ETF | | |
| ULVM | VictoryShares US Value Momentum ETF | | |
| UMAL | Defiance Daily Target 2X Long UMAC ETF | | |
| UMAR | Innovator U.S. Equity Ultra Buffer ETF - March | | |
| UMAY | Innovator U.S. Equity Ultra Buffer ETF - May | | |
| UMCU | Tradr 2X Long UMC Daily ETF | | |
| UMCX | Corgi UMC 2x Daily ETF | | |
| UMDD | UltraPro MidCap400 | | |
| UMI | USCF Midstream Energy Income Fund ETF | | |
| UMMA | Wahed Dow Jones Islamic World ETF | | |
| UN | Corgi UNH 2x Daily ETF | | |
| UNG | United States Natural Gas Fund LP | | |
| UNHG | Leverage Shares 2X Long UNH Daily ETF | | |
| UNHU | Direxion Daily UNH Bull 2X ETF | | |
| UNHW | Roundhill UNH WeeklyPay ETF | | |
| UNIY | WisdomTree Voya Yield Enhanced USD Universal Bond Fund | | |
| UNL | United States 12 Month Natural Gas Fund | | |
| UNOV | Innovator U.S. Equity Ultra Buffer ETF - November | | |
| UNX | Tradr 2X Long U Daily ETF | | |
| UOCT | Innovator U.S. Equity Ultra Buffer ETF - October | | |
| UPAL | ProShares Ultra Palladium K-1 Free ETF | | |