| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.22 | 20.70 | 20.87 | 7.0K | -0.04 | | 0.17 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.92 | 20.50 | 20.50 | 6.4K | -0.30 | | 1.44 | |
| OHI | Omega Healthcare Investors | 46.80 | 46.80 | 46.80 | 700 | 0.07 | | 0.15 | |
| OII | Oceaneering International | 37.80 | 35.44 | 36.00 | 1.34M | -1.56 | | 4.15 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.880 | 7.805 | 7.830 | 83.2K | 0.030 | | 0.38 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.86 | 16.75 | 16.78 | 2.7K | -0.06 | | 0.33 | |
| OPTU | Optimum Communications Inc | 1.635 | 1.505 | 1.540 | 4.68M | -0.060 | | 3.75 | |
| ORC | Orchid Island Capital Inc | 6.990 | 6.919 | 6.966 | 86.7K | -0.064 | | 0.90 | |
| ORI | Old Republic International Corp | 40.52 | 39.58 | 39.70 | 1.92M | -0.48 | | 1.19 | |
| OSG | Overseas Shipholding Group Inc | 4.550 | 4.350 | 4.430 | 339.4K | -0.140 | | 3.06 | |
| OTF | Blue Owl Technology Finance Corp | 10.86 | 10.80 | 10.80 | 1.3K | 0.05 | | 0.47 | |
| OXY | Occidental Petroleum Corp | 61.44 | 59.37 | 59.99 | 232.8K | -0.77 | | 1.27 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 38.80 | 36.59 | 38.80 | 99.9K | 2.23 | | 6.10 | |