| UCB | United Community Banks Inc | 37.51 | 36.85 | 37.11 | 574.3K | 0.13 | | 0.35 | |
| UDR | United Dominion Realty Trust | 36.18 | 35.69 | 35.72 | 2.27M | -0.14 | | 0.39 | |
| UGP | Ultrapar Participacoes S.A. ADR | 7.210 | 5.990 | 6.560 | 12.91M | -1.180 | | 15.25 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 50.01 | 48.98 | 49.30 | 265.6K | -0.06 | | 0.12 | |
| UHS | Universal Health Services | 189.3 | 184.8 | 185.8 | 358.1K | -1.2 | | 0.63 | |
| UHT | Universal Health Realty Income Trust | 38.15 | 37.55 | 37.93 | 47.6K | 0.04 | | 0.11 | |
| UMC | United Microelectronics Corp ADR | 19.35 | 18.50 | 19.19 | 3.99M | 0.29 | | 1.54 | |
| USA | Liberty All-Star Equity Fund | 5.980 | 5.945 | 5.965 | 611.4K | 0.040 | | 0.67 | |
| USAC | USA Compression Partners LP | 25.04 | 24.23 | 25.04 | 498.9K | 0.68 | | 2.70 | |
| USNA | Usana Health Sciences Inc | 14.09 | 13.61 | 14.08 | 86.0K | 0.08 | | 0.57 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.27 | 26.05 | 26.08 | 171.9K | -0.02 | | 0.08 | |
| UTI | Universal Technical Institute Inc | 22.38 | 21.48 | 21.99 | 583.2K | 0.14 | | 0.64 | |
| UVE | Universal Insurance Holdings Inc | 50.75 | 47.54 | 47.89 | 125.0K | -0.97 | | 1.99 | |
| UZD | United States Cellular Corp 6.250% | 17.73 | 17.28 | 17.73 | 4.1K | 0.19 | | 1.08 | |
| UZE | United States Cellular Corp | 15.40 | 15.36 | 15.40 | 13.6K | 0.03 | | 0.21 | |
| UZF | United States Cellular Corp 5.500% | 15.51 | 15.40 | 15.48 | 1.7K | 0.00 | | 0.02 | |