- UITB — VictoryShares Core Intermediate Bond ETF
- UIVM — VictoryShares International Value Momentum ETF
- UJB — ProShares - Ultra High Yield
- UJPY — Citigroup ETNs linked to the VelocityShares Daily 4X Long JPY vs. USD Index
- UK — Ucommune International Ltd
- UKOMW — Ucommune International Ltd
- UL — Unilever PLC
- ULBI — Ultralife Corporation
- ULBR — VelocityShares Long LIBOR ETN
- ULCC — Frontier Group Holdings, Inc.
- ULE — ProShares - Ultra Euro
- ULH — Universal Logistics Holdings, Inc.
- ULS — UL Solutions Inc.
- ULST — State Street Ultra Short Term Bond ETF
- ULT.V — Ultra Lithium Inc.
- ULTA — Ulta Beauty, Inc.
- ULTI — REX IncomeMax Option Strategy ETF
- ULTR — IQ Ultra Short Duration ETF
- ULTY — YieldMax Ultra Option Income Strategy ETF
- ULV.TO — Invesco S&P 500 Low Volatility ETF CAD H
- ULVM — VictoryShares US Value Momentum ETF
- ULY — Urgent.ly Inc. Common Stock
- UMAC — Unusual Machines, Inc.
- UMAX.TO — Hamilton Utilities YIELD MAXIMIZER ETF
- UMBF — UMB Financial Corporation
- UMC — United Microelectronics Corporation
- UMDD — ProShares - UltraPro MidCap 400
- UMH — UMH Properties, Inc.
- UMI — USCF Midstream Energy Income Fund
- UMI.TO — CI U.S. MidCap Dividend Index ETF
- UMMA — Wahed Dow Jones Islamic World ETF
- UMNOX — Lazard US Short Duration Fixed Income Portfolio Open Shares
- UMPIX — ProFunds UltraMid Cap Fund Investor Class
- UMPQ — Umpqua Holdings Corporation
- UMPSX — ProFunds UltraMid Cap Fund
- UMVP.TO — HAMILTON CHAMPIONS Utilities Index ETF
- UNAM — Unico American Corporation
- UNB — Union Bankshares, Inc.
- UNC.TO — United Corporations Limited
- UNCY — Unicycive Therapeutics, Inc.
- UNF — UniFirst Corporation
- UNFI — United Natural Foods, Inc.
- UNFL — Unifoil Holdings, Inc.
- UNG — United States Natural Gas Fund LP
- UNH — UnitedHealth Group Incorporated
- UNHG — Leverage Shares 2x Long UNH Daily ETF
- UNHU — Direxion Daily UNH Bull 2X ETF
- UNI.TO — Unisync Corp.
- UNIT — Uniti Group Inc.
- UNIY — WisdomTree Voya Yield Enhanced USD Universal Bond Fund
- UNL — United States 12 Month Natural Gas Fund LP
- UNM — Unum Group
- UNMA — Unum Group 6.250% JR NT58
- UNP — Union Pacific Corporation
- UNS.TO — Uni-Select Inc.
- UNTD — United Online, Inc.
- UNTY — Unity Bancorp, Inc.
- UNV.V — Universal Copper Ltd.
- UNVR — Univar Solutions Inc.
- UOKA — MDJM Ltd
- UONE — Urban One, Inc.
- UONEK — Urban One, Inc.
- UOPIX — ProFunds UltraNASDAQ-100 Fund Investor Class
- UOPSX — ProFunds UltraNASDAQ-100 Fund
- UP — Wheels Up Experience Inc.
- UPAL — ProShares Ultra Palladium K-1 Free ETF
- UPAR — UPAR Ultra Risk Parity ETF
- UPB — Upstream Bio, Inc.
- UPBD — Upbound Group, Inc.
- UPC — Universe Pharmaceuticals Inc.
- UPGD — Invesco Bloomberg Analyst Rating Improvers ETF
- UPGR — Xtrackers US Green Infrastructure Select Equity ETF
- UPH — UpHealth, Inc.
- UPI.V — Universal PropTech Inc.
- UPLD — Upland Software, Inc.
- UPLT — ProShares Ultra Platinum K-1 Free ETF
- UPRO — ProShares - UltraPro S&P500
- UPS — United Parcel Service, Inc.
- UPSG — Leverage Shares 2x Long UPS Daily ETF
- UPST — Upstart Holdings, Inc.
- UPTD — TradeUP Acquisition Corp.
- UPTDU — TradeUP Acquisition Corp.
- UPTDW — TradeUP Acquisition Corp.
- UPV — ProShares - Ultra FTSE Europe
- UPW — ProShares - Ultra Utilities
- UPWD — JPMorgan Social Advancement ETF
- UPWK — Upwork Inc.
- UPXI — Upexi, Inc.
- URA — Global X - Uranium ETF
- URAA — Direxion Daily Uranium Industry Bull 2X Shares
- URAX — Defiance Daily Target 2X Long Uranium ETF
- URB-A.TO — Urbana Corporation
- URB.TO — Urbana Corporation
- URBN — Urban Outfitters, Inc.
- URC.TO — Uranium Royalty Corp.
- URC.V — Uranium Royalty Corp.
- URE — ProShares - Ultra Real Estate
- URE.TO — Ur-Energy Inc.
- URG — Ur-Energy Inc.
- URGN — UroGen Pharma Ltd.
