| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.51 | 21.22 | 21.50 | 14.8K | 0.15 | | 0.72 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.22 | 20.95 | 21.20 | 8.9K | -0.03 | | 0.14 | |
| OHI | Omega Healthcare Investors | 44.87 | 43.65 | 44.30 | 1.22M | -0.26 | | 0.58 | |
| OIA | Invesco Muni Income Trust | 6.220 | 6.170 | 6.175 | 93.7K | -0.010 | | 0.16 | |
| OII | Oceaneering International | 28.43 | 26.85 | 27.07 | 553.7K | 0.15 | | 0.56 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.960 | 7.870 | 7.920 | 137.5K | -0.030 | | 0.38 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.06 | 16.90 | 17.03 | 6.1K | 0.05 | | 0.29 | |
| OPTU | Optimum Communications Inc | 1.950 | 1.870 | 1.900 | 1.78M | -0.010 | | 0.53 | |
| ORC | Orchid Island Capital Inc | 7.900 | 7.730 | 7.900 | 5.19M | 0.080 | | 1.02 | |
| ORI | Old Republic International Corp | 43.14 | 41.87 | 43.01 | 886.9K | 1.16 | | 2.77 | |
| OSG | Overseas Shipholding Group Inc | 6.400 | 6.175 | 6.190 | 652.3K | -0.080 | | 1.28 | |
| OTF | Blue Owl Technology Finance Corp | 14.14 | 13.83 | 14.14 | 1.01M | 0.26 | | 1.87 | |
| OXY | Occidental Petroleum Corp | 45.11 | 43.13 | 44.34 | 10.19M | 1.03 | | 2.38 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 23.15 | 21.42 | 22.45 | 216.9K | 1.05 | | 4.91 | |