| U HAUL HOLDING COMPANY COM | UHAL | Citadel Securities LLC | 2/1 | - |
| U S GLOBAL INVS INC CL A | GROW | Susquehanna Securities, LLC | 1/1 | - |
| U S GOLD CORP COM NEW | USAU | Susquehanna Securities, LLC | 2/1 | - |
| U S PHYSICAL THERAPY COM | USPH | Belvedere Trading LLC | 2/1 | - |
| UBER TECHNOLOGIES INC COM | UBER | Citadel Securities LLC | 1/1 | - |
| UBS GROUP AG SHS | UBS | Citadel Securities LLC | 2/1 | - |
| UDEMY INC COM | UDMY | Susquehanna Securities, LLC | 2/1 | - |
| UDR INC COM | UDR | Wolverine Trading, LLC | 2/1 | - |
| UFP INDUSTRIES INC COM | UFPI | Susquehanna Securities, LLC | 1/1 | - |
| UFP TECHNOLOGIES INC COM | UFPT | Wolverine Trading, LLC | 1/1 | - |
| UGI CORP NEW COM | UGI | Susquehanna Securities, LLC | 2/1 | - |
| UIPATH INC CL A | PATH | Susquehanna Securities, LLC | 2/1 | - |
| UL SOLUTIONS INC CLASS A COM SHS | ULS | Citadel Securities LLC | 1/1 | - |
| ULTA BEAUTY INC COM | ULTA | Wolverine Trading, LLC | 2/1 | - |
| ULTRA CLEAN HLDGS INC COM | UCTT | Susquehanna Securities, LLC | 2/1 | - |
| ULTRAGENYX PHARMACEUTICAL INC COM | RARE | Citadel Securities LLC | 2/1 | - |
| ULTRAPAR PARTICIPACOES SA SP ADR REP COM | UGP | Wolverine Trading, LLC | 2/1 | - |
| UMB FINL CORP COM | UMBF | Wolverine Trading, LLC | 1/1 | - |
| UMH PPTYS INC COM | UMH | Wolverine Trading, LLC | 2/1 | - |
| UNDER ARMOUR INC CL A | UAA | Wolverine Trading, LLC | 1/1 | - |
| UNDER ARMOUR INC CL C | UA | Citadel Securities LLC | 1/1 | - |
| UNICYCIVE THERAPEUTICS INC COM NEW | UNCY | IMC-Chicago, LLC dba IMC Financial Markets | 2/1 | - |
| UNIFI INC COM NEW | UFI | Wolverine Trading, LLC | 2/1 | - |
| UNIFIED SER TR ONEASCENT CORE P | OACP | Belvedere Trading LLC | 1/1 | - |
| UNIFIRST CORP MASS COM | UNF | Jane Street Capital, LLC | 1/1 | - |
| UNILEVER PLC SPON ADR NEW | UL | IMC-Chicago, LLC dba IMC Financial Markets | 2/1 | - |
| UNION PAC CORP COM | UNP | Citadel Securities LLC | 2/1 | - |
| UNIQURE NV SHS | QURE | Citadel Securities LLC | 1/1 | - |
| UNISYS CORP COM NEW | UIS | Susquehanna Securities, LLC | 1/1 | - |
| UNITED AIRLS HLDGS INC COM | UAL | Citadel Securities LLC | 2/1 | - |
| UNITED BANKSHARES INC WEST VA COM | UBSI | Wolverine Trading, LLC | 2/1 | - |
| UNITED FIRE GROUP INC COM | UFCS | Wolverine Trading, LLC | 2/1 | - |
| UNITED MICROELECTRONICS CORP SPON ADR NEW | UMC | Wolverine Trading, LLC | 2/1 | - |
| UNITED NAT FOODS INC COM | UNFI | Susquehanna Securities, LLC | 2/1 | - |
| UNITED PARCEL SVCS INC CL B | UPS | Susquehanna Securities, LLC | 1/1 | - |
| UNITED PARKS & RESORTS INC COM | PRKS | Susquehanna Securities, LLC | 2/1 | - |
| UNITED RENTALS INC COM | URI | Citadel Securities LLC | 1/1 | - |
| UNITED STATES ANTIMONY CORP COM | UAMY | Susquehanna Securities, LLC | 2/1 | - |
| UNITED STS 12 MONTH NAT GAS FD UNIT BEN INT | UNL | Susquehanna Securities, LLC | 7/1 | - |
| UNITED STS 12 MONTH OIL FD LP UNIT BEN INT | USL | Citadel Securities LLC | 1/1 | - |
| UNITED STS BRENT OIL FD LP UNIT | BNO | Susquehanna Securities, LLC | 7/1 | - |
| UNITED STS COMMODITY INDEX FD CM REP COPP FD | CPER | Susquehanna Securities, LLC | 2/1 | - |
| UNITED STS COMMODITY INDEX FD COMM IDX FND | USCI | Belvedere Trading LLC | 1/1 | - |
| UNITED STS GASOLINE FD LP UNITS | UGA | Citadel Securities LLC | 2/1 | - |
| UNITED STS LIME & MINERALS INC COM | USLM | Wolverine Trading, LLC | 1/1 | - |
| UNITED STS NAT GAS FD LP UNIT PAR | UNG | Citadel Securities LLC | 7/1 | - |
| UNITED STS OIL FD LP UNITS | USO | Susquehanna Securities, LLC | 7/1 | - |
| UNITED THERAPEUTICS CORP DEL COM | UTHR | Susquehanna Securities, LLC | 1/1 | - |
| UNITEDHEALTH GROUP INC COM | UNH | Susquehanna Securities, LLC | 2/1 | - |
| UNITI GROUP LLC COM SHS | UNIT | Citadel Securities LLC | 2/1 | - |
| UNITIL CORP COM | UTL | Wolverine Trading, LLC | 2/1 | - |
| UNITY BANCORP INC COM | UNTY | Wolverine Trading, LLC | 1/1 | - |
| UNITY SOFTWARE INC COM | U | Susquehanna Securities, LLC | 1/1 | - |
| UNIVERSAL CORP VA MTNS BK ENT COM | UVV | Citadel Securities LLC | 1/1 | - |
| UNIVERSAL DISPLAY CORP COM | OLED | IMC-Chicago, LLC dba IMC Financial Markets | 2/1 | - |
| UNIVERSAL ELECTRS INC COM | UEIC | Citadel Securities LLC | 1/1 | - |
| UNIVERSAL HEALTH RLTY INCOME SH BEN INT | UHT | Wolverine Trading, LLC | 2/1 | - |
| UNIVERSAL HLTH SVCS INC CL B | UHS | Susquehanna Securities, LLC | 2/1 | - |
| UNIVERSAL INS HLDGS INC COM | UVE | Citadel Securities LLC | 1/1 | - |
| UNIVERSAL TECHNICAL INST INC COM | UTI | Wolverine Trading, LLC | 1/1 | - |
| UNIVEST FINANCIAL CORPORATION COM | UVSP | Wolverine Trading, LLC | 1/1 | - |
| UNUM GROUP COM | UNM | Susquehanna Securities, LLC | 2/1 | - |
| UNUSUAL MACHS INC COM SHS | UMAC | Wolverine Trading, LLC | 1/1 | - |
| UP FINTECH HLDG LTD SPONSORED ADS | TIGR | Citadel Securities LLC | 1/1 | - |
| UPBOUND GROUP INC COM | UPBD | Wolverine Trading, LLC | 2/1 | - |
| UPEXI INC COM NEW | UPXI | Citadel Securities LLC | 1/1 | - |
| UPLAND SOFTWARE INC COM | UPLD | Group One Trading LLC | 1/1 | - |
| UPSTART HLDGS INC COM | UPST | Susquehanna Securities, LLC | 1/1 | - |
| UPSTREAM BIO INC COM | UPB | Jane Street Capital, LLC | 1/1 | - |
| UPWORK INC COM | UPWK | Citadel Securities LLC | 2/1 | - |
| URANIUM ENERGY CORP COM | UEC | Susquehanna Securities, LLC | 2/1 | - |
| URANIUM RTY CORP COM | UROY | Citadel Securities LLC | 1/1 | - |
| URBAN EDGE PPTYS COM | UE | Group One Trading LLC | 2/1 | - |
| URBAN ONE INC CL A SHS | UONE | Wolverine Trading, LLC | 2/1 | - |
| URBAN OUTFITTERS INC COM | URBN | Susquehanna Securities, LLC | 1/1 | - |
| UROGEN PHARMA LTD COM | URGN | Susquehanna Securities, LLC | 1/1 | - |
| US BANCORP COM NEW | USB | Optiver US LLC | 1/1 | - |
| US FOODS HLDG CORP COM | USFD | Citadel Securities LLC | 1/1 | - |
| USA COMPRESSION PARTNERS LP COM UNIT LTDPAR | USAC | Susquehanna Securities, LLC | 2/1 | - |
| USA RARE EARTH INC COM | USAR | Citadel Securities LLC | 1/1 | - |
| USA TODAY CO INC COM | TDAY | Belvedere Trading LLC | 1/1 | - |
| USANA HEALTH SCIENCES INC COM | USNA | Citadel Securities LLC | 2/1 | - |
| USCF ETF TR GOLD STRATEGY | USG | Belvedere Trading LLC | 2/1 | - |
| USCF ETF TR SUMMERHAVEN K1 | SDCI | Citadel Securities LLC | 2/1 | - |
| Utilities Select Sector Index S&P 500 | SIXU | Susquehanna Securities, LLC | 7/1 | - |
| UTZ BRANDS INC COM CL A | UTZ | Citadel Securities LLC | 2/1 | - |
| UWM HOLDINGS CORPORATION COM CL A | UWMC | Wolverine Trading, LLC | 1/1 | - |