| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.58 | 21.20 | 21.50 | 8.7K | -0.31 | | 1.42 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.35 | 21.20 | 21.25 | 12.3K | -0.25 | | 1.16 | |
| OHI | Omega Healthcare Investors | 46.07 | 45.68 | 45.82 | 1.81M | -0.10 | | 0.22 | |
| OIA | Invesco Muni Income Trust | 6.017 | 5.970 | 5.990 | 155.7K | -0.030 | | 0.50 | |
| OII | Oceaneering International | 24.98 | 24.30 | 24.72 | 606.0K | 0.32 | | 1.31 | |
| OPP | Doubleline Strategic Opportunity Fund | 8.020 | 7.930 | 7.960 | 243.0K | -0.070 | | 0.87 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.84 | 18.71 | 18.77 | 900 | -0.08 | | 0.45 | |
| ORC | Orchid Island Capital Inc | 7.230 | 7.140 | 7.180 | 6.65M | -0.050 | | 0.69 | |
| ORI | Old Republic International Corp | 46.28 | 45.36 | 45.41 | 2.19M | -0.69 | | 1.50 | |
| OSG | Overseas Shipholding Group Inc | 9.100 | 8.610 | 8.830 | 723.1K | -0.160 | | 1.78 | |
| OTF | Blue Owl Technology Finance Corp | 14.24 | 13.77 | 14.13 | 1.41M | 0.23 | | 1.65 | |
| OXY | Occidental Petroleum Corp | 42.74 | 41.79 | 42.34 | 7.49M | 0.34 | | 0.81 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 20.70 | 19.20 | 20.30 | 58.1K | 0.29 | | 1.45 | |