| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.29 | 21.00 | 21.25 | 7.4K | 0.16 | | 0.75 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.87 | 20.75 | 20.80 | 5.6K | -0.01 | | 0.05 | |
| OHI | Omega Healthcare Investors | 44.37 | 43.92 | 44.27 | 392.5K | 0.41 | | 0.93 | |
| OIA | Invesco Muni Income Trust | 6.090 | 5.990 | 6.020 | 254.3K | 0.020 | | 0.33 | |
| OII | Oceaneering International | 24.50 | 24.14 | 24.30 | 258.1K | -0.16 | | 0.65 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.860 | 7.800 | 7.840 | 71.6K | 0.030 | | 0.38 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.96 | 16.86 | 16.96 | 3.0K | 0.02 | | 0.12 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.62 | 18.29 | 18.45 | 1.9K | 0.10 | | 0.54 | |
| OPTU | Optimum Communications Inc | 1.750 | 1.675 | 1.700 | 492.9K | 0.020 | | 1.19 | |
| ORC | Orchid Island Capital Inc | 7.370 | 7.285 | 7.370 | 1.51M | 0.070 | | 0.96 | |
| ORI | Old Republic International Corp | 47.30 | 46.21 | 46.62 | 303.8K | 0.17 | | 0.37 | |
| OSG | Overseas Shipholding Group Inc | 8.220 | 8.040 | 8.080 | 232.9K | -0.140 | | 1.70 | |
| OTF | Blue Owl Technology Finance Corp | 14.17 | 13.90 | 14.11 | 688.2K | 0.01 | | 0.07 | |
| OXY | Occidental Petroleum Corp | 40.23 | 39.94 | 40.05 | 3.03M | -0.10 | | 0.25 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 18.35 | 18.06 | 18.16 | 23.3K | -0.01 | | 0.08 | |