| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.99 | 20.61 | 20.83 | 16.8K | 0.01 | | 0.02 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.82 | 20.69 | 20.69 | 11.3K | -0.05 | | 0.24 | |
| OHI | Omega Healthcare Investors | 48.59 | 47.80 | 48.35 | 1.05M | 0.45 | | 0.94 | |
| OIA | Invesco Muni Income Trust | 6.090 | 6.030 | 6.090 | 78.0K | 0.080 | | 1.33 | |
| OII | Oceaneering International | 39.99 | 38.47 | 39.06 | 384.8K | 0.28 | | 0.72 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.660 | 7.600 | 7.640 | 107.6K | 0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.78 | 16.62 | 16.70 | 4.7K | 0.07 | | 0.39 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.59 | 18.34 | 18.36 | 3.3K | 0.21 | | 1.16 | |
| OPTU | Optimum Communications Inc | 0.7137 | 0.6354 | 0.6442 | 3.34M | -0.0165 | | 2.50 | |
| ORC | Orchid Island Capital Inc | 6.880 | 6.770 | 6.855 | 3.89M | 0.090 | | 1.33 | |
| ORI | Old Republic International Corp | 39.61 | 39.11 | 39.41 | 1.12M | 0.06 | | 0.15 | |
| OSG | Overseas Shipholding Group Inc | 5.720 | 5.470 | 5.550 | 234.6K | -0.040 | | 0.72 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.53 | 10.05 | 10.10 | 21.4K | -0.03 | | 0.25 | |
| OTF | Blue Owl Technology Finance Corp | 10.89 | 10.62 | 10.65 | 1.5M | 0.03 | | 0.28 | |
| OXY | Occidental Petroleum Corp | 59.10 | 57.30 | 57.46 | 6.88M | -1.37 | | 2.32 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 36.98 | 35.50 | 35.50 | 55.6K | -0.05 | | 0.14 | |