| UCB | United Community Banks Inc | 33.92 | 31.97 | 32.18 | 813.8K | -2.16 | | 6.29 | |
| UDR | United Dominion Realty Trust | 38.00 | 37.04 | 37.49 | 1.47M | -0.60 | | 1.58 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.155 | 5.000 | 5.035 | 1.83M | -0.160 | | 3.08 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 47.18 | 45.89 | 47.16 | 429.3K | 0.37 | | 0.80 | |
| UHS | Universal Health Services | 209.2 | 203.5 | 205.8 | 844.0K | 1.5 | | 0.73 | |
| UHT | Universal Health Realty Income Trust | 44.63 | 43.16 | 43.79 | 28.4K | -0.43 | | 0.97 | |
| UMC | United Microelectronics Corp ADR | 10.46 | 10.18 | 10.43 | 2.99M | 0.13 | | 1.21 | |
| USAC | USA Compression Partners LP | 27.62 | 27.06 | 27.22 | 97.8K | -0.38 | | 1.38 | |
| USNA | Usana Health Sciences Inc | 22.15 | 21.16 | 21.50 | 65.4K | 0.34 | | 1.58 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.12 | 26.93 | 27.08 | 303.4K | 0.13 | | 0.48 | |
| UTI | Universal Technical Institute Inc | 36.64 | 34.40 | 36.20 | 936.6K | 1.80 | | 5.23 | |
| UVE | Universal Insurance Holdings Inc | 35.18 | 33.06 | 35.11 | 94.6K | 0.98 | | 2.86 | |
| UZD | United States Cellular Corp 6.250% | 21.17 | 20.80 | 20.85 | 3.8K | -0.74 | | 3.43 | |
| UZE | United States Cellular Corp | 18.88 | 18.51 | 18.60 | 6.2K | -0.49 | | 2.55 | |
| UZF | United States Cellular Corp 5.500% | 19.01 | 18.51 | 18.65 | 7.8K | -0.53 | | 2.76 | |