| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 22.25 | 22.00 | 22.00 | 1.2K | -0.22 | | 0.99 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.96 | 21.88 | 21.94 | 12.8K | 0.04 | | 0.18 | |
| OHI | Omega Healthcare Investors | 46.90 | 46.33 | 46.57 | 1.8M | 0.04 | | 0.09 | |
| OIA | Invesco Muni Income Trust | 6.320 | 6.280 | 6.283 | 49.7K | -0.007 | | 0.11 | |
| OII | Oceaneering International | 35.77 | 33.50 | 34.79 | 2.26M | -1.39 | | 3.84 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.940 | 7.860 | 7.890 | 72.7K | 0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.11 | 17.07 | 17.07 | 1.6K | -0.04 | | 0.20 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.90 | 18.70 | 18.70 | 4.4K | -0.19 | | 1.01 | |
| OPTU | Optimum Communications Inc | 1.580 | 1.510 | 1.530 | 1.66M | -0.030 | | 1.92 | |
| ORC | Orchid Island Capital Inc | 7.600 | 7.460 | 7.580 | 5.06M | 0.090 | | 1.20 | |
| ORI | Old Republic International Corp | 41.90 | 40.82 | 41.22 | 6.92M | -0.30 | | 0.72 | |
| OSG | Overseas Shipholding Group Inc | 5.880 | 5.760 | 5.780 | 244.3K | -0.070 | | 1.20 | |
| OTF | Blue Owl Technology Finance Corp | 12.21 | 11.60 | 11.62 | 4.16M | -0.69 | | 5.61 | |
| OXY | Occidental Petroleum Corp | 52.21 | 50.60 | 51.84 | 16.45M | 0.31 | | 0.60 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 30.16 | 28.66 | 29.80 | 197.5K | 0.31 | | 1.05 | |