| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.90 | 20.81 | 20.90 | 8.6K | 0.05 | | 0.24 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.92 | 20.62 | 20.75 | 21.3K | -0.11 | | 0.53 | |
| OHI | Omega Healthcare Investors | 44.85 | 44.03 | 44.20 | 1.9M | -0.34 | | 0.76 | |
| OIA | Invesco Muni Income Trust | 6.100 | 6.000 | 6.040 | 211.8K | -0.070 | | 1.15 | |
| OII | Oceaneering International | 25.67 | 23.89 | 24.16 | 935.0K | -1.70 | | 6.57 | |
| OPP- | Rivernorth Doubleline Strgic Opp Fd | 0.0050 | 0.0015 | 0.0015 | 714.6K | -0.0021 | | 58.33 | |
| OPTU | Optimum Communications Inc | 1.850 | 1.785 | 1.800 | 1.54M | -0.020 | | 1.10 | |
| ORC | Orchid Island Capital Inc | 7.310 | 7.162 | 7.280 | 5.81M | 0.110 | | 1.53 | |
| ORI | Old Republic International Corp | 46.04 | 44.80 | 45.25 | 1.46M | -0.43 | | 0.94 | |
| OSG | Overseas Shipholding Group Inc | 8.860 | 8.310 | 8.360 | 464.8K | -0.210 | | 2.45 | |
| OTF | Blue Owl Technology Finance Corp | 14.08 | 13.77 | 13.92 | 1.37M | -0.01 | | 0.07 | |
| OXY | Occidental Petroleum Corp | 39.83 | 38.80 | 38.92 | 12.61M | -1.27 | | 3.16 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 18.01 | 17.00 | 17.22 | 278.8K | -1.14 | | 6.21 | |