| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.12 | 20.81 | 20.94 | 6.9K | -0.15 | | 0.69 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.87 | 20.71 | 20.75 | 4.0K | -0.08 | | 0.36 | |
| OHI | Omega Healthcare Investors | 51.90 | 51.00 | 51.34 | 1.23M | -0.27 | | 0.52 | |
| OIA | Invesco Muni Income Trust | 6.140 | 6.070 | 6.130 | 126.5K | 0.020 | | 0.33 | |
| OII | Oceaneering International | 50.14 | 46.57 | 46.57 | 639.6K | -1.41 | | 2.94 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.638 | 7.560 | 7.560 | 33.3K | -0.040 | | 0.53 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.00 | 15.93 | 15.96 | 2.7K | -0.11 | | 0.65 | |
| OPP-B | Rivernorth/Doubleline Strategic | 17.18 | 17.04 | 17.12 | 11.3K | 0.05 | | 0.29 | |
| ORC | Orchid Island Capital Inc | 6.690 | 6.550 | 6.570 | 6.12M | -0.010 | | 0.15 | |
| ORI | Old Republic International Corp | 44.65 | 43.75 | 44.59 | 616.0K | 0.18 | | 0.41 | |
| OSG | Overseas Shipholding Group Inc | 5.780 | 5.660 | 5.720 | 135.1K | -0.080 | | 1.38 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.14 | 10.10 | 10.13 | 51.7K | -0.01 | | 0.05 | |
| OTAI | Starlink AI Acquisition Corp. | 9.960 | 9.940 | 9.940 | 31.1K | -0.010 | | 0.10 | |
| OTF | Blue Owl Technology Finance Corp | 10.110 | 9.930 | 9.950 | 1.04M | -0.120 | | 1.19 | |
| OXY | Occidental Petroleum Corp | 56.32 | 54.70 | 56.05 | 5.87M | 2.10 | | 3.89 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 34.30 | 33.49 | 34.10 | 44.5K | 2.17 | | 6.80 | |