| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.85 | 21.56 | 21.79 | 6.7K | 0.13 | | 0.58 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.60 | 21.52 | 21.55 | 8.0K | -0.06 | | 0.27 | |
| OHI | Omega Healthcare Investors | 43.94 | 42.92 | 43.86 | 780.7K | 0.47 | | 1.08 | |
| OII | Oceaneering International | 30.99 | 29.19 | 30.10 | 552.5K | -0.30 | | 0.99 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.890 | 7.840 | 7.875 | 96.6K | 0.020 | | 0.25 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.11 | 16.95 | 17.05 | 3.9K | -0.09 | | 0.55 | |
| OPP-B | Rivernorth/Doubleline Strategic | 19.09 | 18.90 | 19.03 | 3.7K | -0.05 | | 0.26 | |
| OPTU | Optimum Communications Inc | 1.638 | 1.520 | 1.550 | 1.71M | -0.070 | | 4.38 | |
| ORC | Orchid Island Capital Inc | 8.370 | 7.770 | 7.810 | 12.23M | -0.460 | | 5.56 | |
| ORI | Old Republic International Corp | 39.36 | 38.56 | 39.17 | 863.7K | 0.08 | | 0.20 | |
| OSG | Overseas Shipholding Group Inc | 5.825 | 5.560 | 5.690 | 416.3K | -0.020 | | 0.35 | |
| OTF | Blue Owl Technology Finance Corp | 13.55 | 13.26 | 13.33 | 1.49M | -0.07 | | 0.52 | |
| OXY | Occidental Petroleum Corp | 45.50 | 44.34 | 45.41 | 7.56M | -0.02 | | 0.03 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 23.53 | 22.45 | 23.53 | 43.6K | 0.03 | | 0.13 | |