| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.52 | 21.08 | 21.52 | 7.2K | 0.17 | | 0.80 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.25 | 20.88 | 20.98 | 6.8K | -0.25 | | 1.18 | |
| OHI | Omega Healthcare Investors | 45.11 | 44.64 | 45.02 | 213.2K | 0.29 | | 0.65 | |
| OIA | Invesco Muni Income Trust | 6.010 | 5.920 | 5.930 | 32.8K | 0.020 | | 0.34 | |
| OII | Oceaneering International | 37.48 | 35.50 | 36.27 | 149.7K | -0.93 | | 2.50 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.700 | 7.550 | 7.700 | 28.2K | 0.160 | | 2.12 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.90 | 16.78 | 16.80 | 5.3K | 0.04 | | 0.21 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.22 | 18.13 | 18.19 | 400 | 0.02 | | 0.11 | |
| OPTU | Optimum Communications Inc | 1.360 | 1.270 | 1.285 | 572.5K | 0.035 | | 2.80 | |
| ORC | Orchid Island Capital Inc | 7.180 | 7.000 | 7.175 | 2.31M | 0.225 | | 3.24 | |
| ORI | Old Republic International Corp | 39.67 | 39.26 | 39.45 | 208.0K | 0.25 | | 0.63 | |
| OSG | Overseas Shipholding Group Inc | 4.920 | 4.665 | 4.690 | 113.8K | -0.150 | | 3.10 | |
| OTF | Blue Owl Technology Finance Corp | 12.89 | 12.45 | 12.55 | 666.4K | 0.15 | | 1.17 | |
| OXY | Occidental Petroleum Corp | 61.75 | 59.73 | 61.59 | 5.41M | 0.34 | | 0.56 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 40.08 | 38.28 | 39.14 | 154.0K | 0.87 | | 2.27 | |