| UCB | United Community Banks Inc | 37.05 | 36.61 | 36.74 | 365.3K | -0.02 | | 0.05 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 65.49 | 63.90 | 65.19 | 309.3K | 0.26 | | 0.40 | |
| UHS | Universal Health Services | 172.3 | 169.5 | 170.0 | 153.5K | -1.2 | | 0.70 | |
| UHT | Universal Health Realty Income Trust | 41.95 | 41.08 | 41.38 | 22.5K | 0.04 | | 0.10 | |
| UMC | United Microelectronics Corp ADR | 19.52 | 18.75 | 19.16 | 4.6M | -0.23 | | 1.19 | |
| USA | Liberty All-Star Equity Fund | 6.120 | 5.990 | 6.090 | 683.5K | -0.010 | | 0.16 | |
| USAC | USA Compression Partners LP | 26.75 | 25.96 | 26.62 | 171.7K | 0.56 | | 2.15 | |
| USNA | Usana Health Sciences Inc | 13.85 | 13.31 | 13.38 | 100.0K | -0.26 | | 1.91 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.15 | 26.94 | 27.02 | 151.8K | 0.05 | | 0.19 | |
| UTI | Universal Technical Institute Inc | 25.84 | 24.76 | 25.17 | 1.09M | -0.69 | | 2.67 | |
| UVE | Universal Insurance Holdings Inc | 43.32 | 42.40 | 43.25 | 38.0K | 0.82 | | 1.93 | |
| UZD | United States Cellular Corp 6.250% | 19.16 | 18.85 | 18.85 | 3.1K | -0.31 | | 1.62 | |
| UZE | United States Cellular Corp | 16.85 | 16.55 | 16.72 | 7.0K | 0.04 | | 0.24 | |
| UZF | United States Cellular Corp 5.500% | 16.83 | 16.82 | 16.82 | 555 | 0.09 | | 0.52 | |