| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.07 | 19.95 | 20.04 | 16.5K | 0.00 | | 0.02 | |
| OCA.U | Omnichannel Acquisition Corp | 10.61 | 10.23 | 10.28 | 1.9K | -0.02 | | 0.19 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0353 | 0.0351 | 0.0353 | 200 | -0.0047 | | 11.75 | |
| OCAC | Ocean Capital Acquisition Corporation | 9.995 | 9.990 | 9.990 | 45.7K | -0.010 | | 0.10 | |
| OHI | Omega Healthcare Investors | 44.31 | 43.45 | 44.23 | 835.2K | 0.48 | | 1.10 | |
| OIA | Invesco Muni Income Trust | 5.737 | 5.670 | 5.720 | 147.7K | 0.020 | | 0.35 | |
| OII | Oceaneering International | 44.94 | 43.33 | 44.70 | 277.0K | 1.00 | | 2.29 | |
| OPP | Doubleline Strategic Opportunity Fund | 6.960 | 6.850 | 6.870 | 85.6K | -0.030 | | 0.43 | |
| OPP-A | Rivernorth/Doubleline Strategic | 14.80 | 14.63 | 14.63 | 4.6K | -0.14 | | 0.95 | |
| OPTU | Optimum Communications Inc | 1.0000 | 0.9207 | 0.9702 | 1.02M | -0.0298 | | 2.98 | |
| ORC | Orchid Island Capital Inc | 5.025 | 4.850 | 4.985 | 6.58M | -0.015 | | 0.30 | |
| ORI | Old Republic International Corp | 38.61 | 37.66 | 38.46 | 350.3K | 0.75 | | 1.99 | |
| OSG | Overseas Shipholding Group Inc | 4.820 | 4.545 | 4.745 | 323.8K | 0.125 | | 2.71 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.20 | 10.17 | 10.20 | 500 | 0.03 | | 0.29 | |
| OTAI | Starlink AI Acquisition Corp. | 10.10 | 10.04 | 10.04 | 379 | -0.01 | | 0.06 | |
| OTF | Blue Owl Technology Finance Corp | 9.395 | 9.180 | 9.390 | 1.04M | 0.140 | | 1.51 | |
| OXY | Occidental Petroleum Corp | 60.19 | 58.40 | 60.15 | 5.21M | 1.94 | | 3.33 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 37.04 | 35.75 | 36.25 | 51.6K | -0.14 | | 0.38 | |