| UCB | United Community Banks Inc | 36.80 | 36.21 | 36.35 | 116.8K | -0.28 | | 0.76 | |
| UDR | United Dominion Realty Trust | 37.63 | 37.19 | 37.28 | 1.66M | 0.02 | | 0.05 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.580 | 6.380 | 6.395 | 1.26M | -0.075 | | 1.16 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 65.16 | 63.83 | 64.52 | 332.8K | -0.67 | | 1.03 | |
| UHS | Universal Health Services | 176.2 | 169.0 | 175.6 | 234.4K | 5.1 | | 2.98 | |
| UHT | Universal Health Realty Income Trust | 41.07 | 40.30 | 40.69 | 25.6K | 0.47 | | 1.16 | |
| UMC | United Microelectronics Corp ADR | 19.21 | 18.19 | 18.21 | 4.73M | -1.32 | | 6.73 | |
| USA | Liberty All-Star Equity Fund | 6.030 | 5.960 | 6.000 | 510.0K | -0.040 | | 0.66 | |
| USAC | USA Compression Partners LP | 27.06 | 26.56 | 26.66 | 25.3K | -0.25 | | 0.93 | |
| USNA | Usana Health Sciences Inc | 13.33 | 12.57 | 13.04 | 89.4K | 0.17 | | 1.28 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.39 | 27.10 | 27.15 | 106.6K | 0.05 | | 0.18 | |
| UTI | Universal Technical Institute Inc | 26.53 | 25.38 | 25.38 | 406.1K | -0.78 | | 2.98 | |
| UVE | Universal Insurance Holdings Inc | 43.40 | 42.69 | 42.87 | 34.6K | 0.17 | | 0.40 | |
| UZD | United States Cellular Corp 6.250% | 18.97 | 18.85 | 18.89 | 3.0K | -0.08 | | 0.41 | |
| UZE | United States Cellular Corp | 16.84 | 16.60 | 16.82 | 4.9K | 0.09 | | 0.51 | |
| UZF | United States Cellular Corp 5.500% | 16.99 | 16.72 | 16.92 | 2.0K | 0.07 | | 0.42 | |