| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.87 | 20.28 | 20.34 | 15.6K | -0.36 | | 1.73 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.53 | 20.30 | 20.32 | 11.6K | -0.06 | | 0.29 | |
| OHI | Omega Healthcare Investors | 45.94 | 45.59 | 45.79 | 409.5K | 0.07 | | 0.15 | |
| OIA | Invesco Muni Income Trust | 6.220 | 6.138 | 6.160 | 56.6K | -0.030 | | 0.48 | |
| OII | Oceaneering International | 36.71 | 35.70 | 36.21 | 272.6K | -0.25 | | 0.69 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.840 | 7.730 | 7.750 | 36.4K | 0.015 | | 0.19 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.95 | 16.71 | 16.71 | 4.0K | -0.07 | | 0.40 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.62 | 18.25 | 18.62 | 1.6K | 0.03 | | 0.16 | |
| OPTU | Optimum Communications Inc | 1.350 | 1.310 | 1.320 | 805.9K | -0.010 | | 0.75 | |
| ORC | Orchid Island Capital Inc | 7.250 | 7.145 | 7.200 | 2.71M | 0.010 | | 0.14 | |
| ORI | Old Republic International Corp | 41.65 | 40.82 | 40.86 | 322.0K | -0.73 | | 1.76 | |
| OSG | Overseas Shipholding Group Inc | 4.185 | 3.880 | 3.920 | 541.3K | -0.170 | | 4.14 | |
| OTF | Blue Owl Technology Finance Corp | 11.47 | 11.18 | 11.33 | 924.4K | 0.12 | | 1.07 | |
| OXY | Occidental Petroleum Corp | 58.82 | 57.50 | 58.00 | 6.59M | -0.56 | | 0.96 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 36.73 | 35.40 | 36.03 | 43.3K | -0.35 | | 0.96 | |