| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.20 | 20.90 | 20.91 | 3.6K | 0.07 | | 0.35 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.97 | 20.72 | 20.80 | 6.9K | 0.08 | | 0.39 | |
| OHI | Omega Healthcare Investors | 47.53 | 46.98 | 47.42 | 3.33M | 0.75 | | 1.61 | |
| OII | Oceaneering International | 38.92 | 37.05 | 37.56 | 875.3K | -0.43 | | 1.13 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.840 | 7.800 | 7.800 | 64.3K | -0.028 | | 0.36 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.86 | 16.80 | 16.84 | 2.4K | -0.01 | | 0.03 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.49 | 18.33 | 18.33 | 4.7K | -0.22 | | 1.19 | |
| OPTU | Optimum Communications Inc | 1.620 | 1.520 | 1.600 | 2.69M | 0.060 | | 3.90 | |
| ORC | Orchid Island Capital Inc | 7.195 | 7.090 | 7.130 | 5.37M | -0.020 | | 0.28 | |
| ORI | Old Republic International Corp | 40.80 | 39.88 | 40.18 | 1.9M | -0.05 | | 0.12 | |
| OSG | Overseas Shipholding Group Inc | 4.680 | 4.520 | 4.570 | 210.8K | 0.040 | | 0.88 | |
| OTF | Blue Owl Technology Finance Corp | 10.96 | 10.67 | 10.93 | 1.99M | 0.11 | | 1.02 | |
| OXY | Occidental Petroleum Corp | 59.00 | 57.92 | 58.61 | 12.31M | 1.34 | | 2.34 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 37.00 | 35.98 | 36.57 | 56.6K | 1.15 | | 3.25 | |