| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.00 | 20.82 | 20.90 | 9.0K | -0.01 | | 0.02 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.66 | 20.50 | 20.50 | 7.4K | -0.07 | | 0.34 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0399 | 0.0350 | 0.0350 | 2.2K | -0.0049 | | 12.28 | |
| OHI | Omega Healthcare Investors | 47.10 | 46.60 | 46.73 | 219.4K | 0.16 | | 0.34 | |
| OIA | Invesco Muni Income Trust | 6.070 | 6.050 | 6.060 | 11.3K | -0.020 | | 0.33 | |
| OII | Oceaneering International | 54.41 | 52.60 | 52.65 | 128.7K | -1.46 | | 2.70 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.570 | 7.530 | 7.545 | 5.2K | -0.015 | | 0.20 | |
| OPP-A | Rivernorth/Doubleline Strategic | 15.64 | 15.41 | 15.46 | 6.1K | -0.10 | | 0.66 | |
| OPP-B | Rivernorth/Doubleline Strategic | 16.95 | 16.72 | 16.73 | 7.7K | -0.19 | | 1.11 | |
| OPTU | Optimum Communications Inc | 0.9184 | 0.8666 | 0.8930 | 86.9K | 0.0088 | | 1.00 | |
| ORC | Orchid Island Capital Inc | 6.690 | 6.630 | 6.670 | 610.2K | 0.010 | | 0.15 | |
| ORI | Old Republic International Corp | 43.12 | 42.67 | 42.98 | 177.3K | 0.47 | | 1.11 | |
| OSG | Overseas Shipholding Group Inc | 4.770 | 4.560 | 4.625 | 61.9K | 0.015 | | 0.33 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.23 | 10.18 | 10.23 | 2.4K | 0.03 | | 0.29 | |
| OTF | Blue Owl Technology Finance Corp | 11.19 | 11.00 | 11.16 | 315.0K | 0.03 | | 0.22 | |
| OXY | Occidental Petroleum Corp | 60.16 | 59.04 | 59.43 | 1.87M | 0.38 | | 0.64 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 37.12 | 36.25 | 37.00 | 19.6K | 0.62 | | 1.70 | |