| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.10 | 21.05 | 21.10 | 200 | 0.10 | | 0.48 | |
| OHI | Omega Healthcare Investors | 48.38 | 47.59 | 48.00 | 129.2K | -0.31 | | 0.64 | |
| OIA | Invesco Muni Income Trust | 6.190 | 6.160 | 6.175 | 14.1K | 0.005 | | 0.08 | |
| OII | Oceaneering International | 36.72 | 35.38 | 36.39 | 338.8K | 0.25 | | 0.69 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.800 | 7.720 | 7.780 | 19.3K | 0.030 | | 0.39 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.92 | 16.85 | 16.85 | 3.8K | -0.03 | | 0.20 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.78 | 18.38 | 18.62 | 5.0K | 0.23 | | 1.24 | |
| OPTU | Optimum Communications Inc | 1.500 | 1.370 | 1.485 | 457.4K | -0.005 | | 0.34 | |
| ORC | Orchid Island Capital Inc | 7.488 | 7.407 | 7.470 | 659.3K | 0.020 | | 0.27 | |
| ORI | Old Republic International Corp | 40.69 | 40.12 | 40.65 | 141.6K | -0.01 | | 0.01 | |
| OSG | Overseas Shipholding Group Inc | 5.680 | 5.460 | 5.460 | 102.2K | -0.050 | | 0.91 | |
| OTF | Blue Owl Technology Finance Corp | 11.75 | 11.39 | 11.59 | 488.8K | 0.13 | | 1.13 | |
| OXY | Occidental Petroleum Corp | 54.60 | 52.77 | 54.42 | 4.94M | 1.30 | | 2.45 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 32.10 | 30.31 | 31.10 | 125.6K | -1.60 | | 4.89 | |