| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 22.08 | 21.97 | 22.08 | 4.3K | 0.08 | | 0.36 | |
| OHI | Omega Healthcare Investors | 47.58 | 46.16 | 47.04 | 1.32M | 0.46 | | 0.99 | |
| OIA | Invesco Muni Income Trust | 6.340 | 6.280 | 6.320 | 117.3K | 0.037 | | 0.59 | |
| OII | Oceaneering International | 37.80 | 34.66 | 37.21 | 946.5K | 2.43 | | 6.98 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.910 | 7.820 | 7.830 | 126.0K | -0.060 | | 0.76 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.14 | 16.99 | 17.07 | 6.7K | 0.01 | | 0.03 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.78 | 18.60 | 18.78 | 5.9K | 0.08 | | 0.40 | |
| OPTU | Optimum Communications Inc | 1.530 | 1.460 | 1.470 | 1.83M | -0.060 | | 3.92 | |
| ORC | Orchid Island Capital Inc | 7.700 | 7.475 | 7.600 | 6.83M | 0.010 | | 0.13 | |
| ORI | Old Republic International Corp | 41.83 | 41.21 | 41.61 | 942.2K | 0.39 | | 0.95 | |
| OSG | Overseas Shipholding Group Inc | 5.840 | 5.620 | 5.660 | 430.4K | -0.140 | | 2.42 | |
| OTF | Blue Owl Technology Finance Corp | 11.74 | 10.99 | 11.19 | 3.26M | -0.43 | | 3.70 | |
| OXY | Occidental Petroleum Corp | 53.33 | 51.30 | 52.46 | 9.73M | 0.59 | | 1.14 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 31.28 | 30.00 | 30.40 | 166.3K | 0.61 | | 2.03 | |