| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.08 | 20.81 | 20.98 | 17.5K | -0.13 | | 0.59 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.95 | 20.58 | 20.65 | 33.1K | -0.15 | | 0.72 | |
| OHI | Omega Healthcare Investors | 44.80 | 43.78 | 44.34 | 445.7K | -0.48 | | 1.07 | |
| OIA | Invesco Muni Income Trust | 6.150 | 5.970 | 6.010 | 381.6K | -0.040 | | 0.66 | |
| OII | Oceaneering International | 24.92 | 23.94 | 24.02 | 217.3K | -0.28 | | 1.15 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.960 | 7.880 | 7.955 | 232.7K | 0.040 | | 0.51 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.95 | 16.86 | 16.95 | 2.4K | 0.05 | | 0.30 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.57 | 18.30 | 18.34 | 6.3K | 0.02 | | 0.11 | |
| OPTU | Optimum Communications Inc | 1.710 | 1.620 | 1.650 | 2.06M | 0.010 | | 0.61 | |
| ORC | Orchid Island Capital Inc | 7.290 | 7.180 | 7.190 | 4.65M | -0.080 | | 1.10 | |
| ORI | Old Republic International Corp | 46.46 | 45.61 | 45.66 | 959.7K | -0.60 | | 1.30 | |
| OSG | Overseas Shipholding Group Inc | 7.845 | 7.630 | 7.810 | 735.9K | -0.050 | | 0.64 | |
| OTF | Blue Owl Technology Finance Corp | 14.90 | 14.36 | 14.54 | 1.39M | -0.12 | | 0.82 | |
| OXY | Occidental Petroleum Corp | 41.57 | 40.99 | 41.11 | 4.88M | -0.34 | | 0.82 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 19.47 | 19.10 | 19.27 | 56.1K | -0.27 | | 1.40 | |