| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.16 | 20.66 | 20.80 | 7.4K | -0.06 | | 0.26 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.73 | 20.53 | 20.59 | 7.5K | 0.04 | | 0.19 | |
| OHI | Omega Healthcare Investors | 47.34 | 46.74 | 46.98 | 996.6K | 0.01 | | 0.02 | |
| OIA | Invesco Muni Income Trust | 6.140 | 6.080 | 6.130 | 61.0K | -0.010 | | 0.16 | |
| OII | Oceaneering International | 37.83 | 36.05 | 37.07 | 631.9K | -0.47 | | 1.25 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.915 | 7.840 | 7.872 | 87.8K | -0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.68 | 16.61 | 16.64 | 3.8K | -0.11 | | 0.67 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.20 | 18.06 | 18.20 | 4.9K | -0.16 | | 0.87 | |
| OPTU | Optimum Communications Inc | 1.640 | 1.520 | 1.610 | 2.06M | 0.020 | | 1.27 | |
| ORC | Orchid Island Capital Inc | 7.110 | 6.990 | 7.080 | 4.23M | 0.050 | | 0.71 | |
| ORI | Old Republic International Corp | 40.22 | 39.25 | 39.25 | 606.0K | -0.69 | | 1.73 | |
| OSG | Overseas Shipholding Group Inc | 4.425 | 4.260 | 4.380 | 227.8K | -0.050 | | 1.13 | |
| OTF | Blue Owl Technology Finance Corp | 11.72 | 11.37 | 11.59 | 1.41M | 0.21 | | 1.85 | |
| OXY | Occidental Petroleum Corp | 60.85 | 57.90 | 58.73 | 8.87M | -1.87 | | 3.09 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 38.05 | 36.00 | 36.62 | 80.7K | -1.93 | | 5.01 | |