| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 22.27 | 22.00 | 22.23 | 7.5K | 0.13 | | 0.57 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 22.03 | 21.95 | 22.03 | 14.1K | 0.08 | | 0.35 | |
| OHI | Omega Healthcare Investors | 49.02 | 47.73 | 48.85 | 460.0K | 0.76 | | 1.57 | |
| OIA | Invesco Muni Income Trust | 6.390 | 6.350 | 6.370 | 40.7K | 0.010 | | 0.16 | |
| OII | Oceaneering International | 38.00 | 35.21 | 35.41 | 421.0K | -2.17 | | 5.76 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.930 | 7.850 | 7.910 | 55.2K | 0.030 | | 0.38 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.10 | 16.94 | 17.01 | 13.5K | -0.08 | | 0.46 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.75 | 18.60 | 18.62 | 3.1K | -0.13 | | 0.69 | |
| OPTU | Optimum Communications Inc | 1.440 | 1.385 | 1.425 | 540.7K | 0.005 | | 0.35 | |
| ORC | Orchid Island Capital Inc | 7.590 | 7.418 | 7.495 | 3.2M | -0.105 | | 1.38 | |
| ORI | Old Republic International Corp | 43.04 | 42.55 | 42.67 | 234.0K | -0.02 | | 0.05 | |
| OSG | Overseas Shipholding Group Inc | 5.550 | 5.400 | 5.415 | 74.8K | -0.105 | | 1.90 | |
| OTF | Blue Owl Technology Finance Corp | 11.70 | 11.07 | 11.16 | 697.9K | -0.31 | | 2.70 | |
| OXY | Occidental Petroleum Corp | 53.05 | 51.25 | 52.56 | 4.22M | 1.13 | | 2.19 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 29.94 | 27.59 | 29.26 | 89.3K | 0.52 | | 1.81 | |