| UCB | United Community Banks Inc | 33.52 | 33.13 | 33.22 | 196.2K | -0.06 | | 0.18 | |
| UDR | United Dominion Realty Trust | 38.24 | 37.39 | 38.03 | 3.04M | 0.50 | | 1.33 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.820 | 5.660 | 5.685 | 2.89M | -0.100 | | 1.73 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 47.25 | 46.34 | 47.10 | 397.8K | 0.26 | | 0.56 | |
| UHS | Universal Health Services | 163.4 | 157.4 | 157.7 | 612.2K | -4.7 | | 2.86 | |
| UHT | Universal Health Realty Income Trust | 42.50 | 41.98 | 42.30 | 27.3K | 0.18 | | 0.43 | |
| UMC | United Microelectronics Corp ADR | 18.35 | 17.89 | 18.20 | 7.34M | -0.13 | | 0.71 | |
| USA | Liberty All-Star Equity Fund | 6.042 | 5.710 | 5.810 | 728.7K | 0.030 | | 0.52 | |
| USAC | USA Compression Partners LP | 29.60 | 28.90 | 29.03 | 166.2K | -0.36 | | 1.22 | |
| USNA | Usana Health Sciences Inc | 18.85 | 18.47 | 18.73 | 49.2K | 0.18 | | 0.97 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.10 | 26.90 | 26.97 | 244.9K | 0.08 | | 0.30 | |
| UTI | Universal Technical Institute Inc | 41.42 | 38.48 | 40.07 | 2.28M | 3.46 | | 9.45 | |
| UVE | Universal Insurance Holdings Inc | 40.00 | 38.92 | 38.93 | 65.3K | -0.72 | | 1.81 | |
| UZD | United States Cellular Corp 6.250% | 19.65 | 19.55 | 19.65 | 1.3K | 0.09 | | 0.46 | |
| UZE | United States Cellular Corp | 17.82 | 17.62 | 17.71 | 4.5K | 0.04 | | 0.23 | |
| UZF | United States Cellular Corp 5.500% | 17.69 | 17.61 | 17.69 | 342 | 0.11 | | 0.63 | |