| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.73 | 21.48 | 21.69 | 7.5K | 0.22 | | 1.00 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.23 | 20.89 | 21.20 | 5.9K | 0.28 | | 1.34 | |
| OHI | Omega Healthcare Investors | 43.42 | 43.39 | 43.42 | 398 | 0.18 | | 0.42 | |
| OIA | Invesco Muni Income Trust | 6.190 | 6.120 | 6.180 | 138.2K | 0.030 | | 0.49 | |
| OII | Oceaneering International | 30.06 | 28.06 | 28.44 | 694.9K | -0.17 | | 0.59 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.860 | 7.810 | 7.841 | 81.7K | 0.011 | | 0.14 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.14 | 17.02 | 17.10 | 15.5K | 0.07 | | 0.41 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.98 | 18.72 | 18.85 | 3.1K | 0.01 | | 0.05 | |
| OPTU | Optimum Communications Inc | 1.900 | 1.800 | 1.820 | 707.3K | -0.020 | | 1.09 | |
| ORC | Orchid Island Capital Inc | 8.300 | 8.125 | 8.210 | 5.65M | 0.050 | | 0.61 | |
| ORI | Old Republic International Corp | 39.18 | 39.17 | 39.17 | 398 | 0.06 | | 0.16 | |
| OSG | Overseas Shipholding Group Inc | 6.570 | 6.270 | 6.280 | 606.1K | -0.020 | | 0.32 | |
| OTF | Blue Owl Technology Finance Corp | 14.04 | 13.75 | 13.98 | 1.45M | 0.14 | | 1.01 | |
| OXY | Occidental Petroleum Corp | 43.45 | 43.31 | 43.41 | 9.4K | 0.24 | | 0.54 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 21.40 | 20.45 | 21.25 | 92.8K | -0.30 | | 1.39 | |