| ECF=F | European Union Allowance (EUA) | 69.09 | N/A | Future | NYM |
| UAL | United Airlines Holdings, Inc. | 51.38 | Industrials | Stocks | NMS |
| UNH | UnitedHealth Group Incorporated | 501.13 | Healthcare | Stocks | NYQ |
| UPS | United Parcel Service, Inc. | 142.77 | Industrials | Stocks | NYQ |
| U | Unity Software Inc. | 22.89 | Technology | Stocks | NYQ |
| X | United States Steel Corporation | 38.59 | Basic Materials | Stocks | NYQ |
| ON | ON Semiconductor Corporation | 60.71 | Technology | Stocks | NMS |
| UNG | United States Natural Gas Fund | 14.52 | N/A | ETF | PCX |
| NU | Nu Holdings Ltd. | 10.48 | Financial Services | Stocks | NYQ |
| RUN | Sunrun Inc. | 10.25 | Technology | Stocks | NMS |
| USO | United States Oil Fund | 78.85 | N/A | ETF | PCX |
| UNP | Union Pacific Corporation | 232.08 | Industrials | Stocks | NYQ |
| OLED | Universal Display Corporation | 149.81 | Technology | Stocks | NMS |
| UAA | Under Armour, Inc. | 6.73 | Consumer Cyclical | Stocks | NYQ |
| UMC | United Microelectronics Corpora | 7.40 | Technology | Stocks | NYQ |
| URI | United Rentals, Inc. | 628.34 | Industrials | Stocks | NYQ |
| BYDDY | BYD COMPANY LIMITED UNSP ADR EA | 51.30 | Consumer Cyclical | Stocks | PNK |
| SUN | Sunoco LP | 55.50 | Energy | Stocks | NYQ |
| ITUB | Itau Unibanco Banco Holding SA | 6.05 | Financial Services | Stocks | NYQ |
| UL | Unilever PLC | 47.31 | Consumer Defensive | Stocks | NYQ |
| TCEHY | TENCENT HOLDINGS LIMITED UNSP A | 38.98 | Communication Services | Stocks | PNK |
| UAN | CVR Partners, LP | 76.58 | Basic Materials | Stocks | NYQ |
| UNIT | Uniti Group Inc. | 5.31 | Real Estate | Stocks | NMS |
| UNFI | United Natural Foods, Inc. | 9.27 | Consumer Defensive | Stocks | NYQ |
| UIS | Unisys Corporation New | 5.48 | Technology | Stocks | NYQ |