| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 19.98 | 19.47 | 19.74 | 18.2K | 0.23 | | 1.18 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 19.61 | 19.31 | 19.56 | 23.3K | 0.21 | | 1.09 | |
| OCA.U | Omnichannel Acquisition Corp | 10.39 | 10.26 | 10.26 | 300 | -0.05 | | 0.48 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0301 | 0.0301 | 0.0301 | 2.0K | -0.0050 | | 14.25 | |
| OCAC | Ocean Capital Acquisition Corporation | 9.980 | 9.980 | 9.980 | 404 | -0.010 | | 0.10 | |
| OHI | Omega Healthcare Investors | 47.55 | 46.81 | 46.97 | 940.1K | 0.14 | | 0.30 | |
| OIA | Invesco Muni Income Trust | 5.850 | 5.770 | 5.840 | 231.0K | 0.040 | | 0.69 | |
| OII | Oceaneering International | 41.90 | 40.23 | 40.86 | 404.6K | -0.71 | | 1.71 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.060 | 6.950 | 6.980 | 75.1K | 0.010 | | 0.14 | |
| OPP-B | Rivernorth/Doubleline Strategic | 16.05 | 15.81 | 15.87 | 3.6K | 0.02 | | 0.09 | |
| OPTU | Optimum Communications Inc | 0.7357 | 0.6116 | 0.7305 | 1.27M | 0.0661 | | 9.96 | |
| ORC | Orchid Island Capital Inc | 4.950 | 4.755 | 4.800 | 6.42M | -0.230 | | 4.57 | |
| ORI | Old Republic International Corp | 39.11 | 38.40 | 38.52 | 760.8K | 0.08 | | 0.21 | |
| OSG | Overseas Shipholding Group Inc | 5.065 | 4.910 | 5.045 | 370.5K | 0.090 | | 1.82 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.40 | 10.34 | 10.34 | 1.9K | 0.01 | | 0.07 | |
| OTAI | Starlink AI Acquisition Corp. | 10.15 | 10.09 | 10.10 | 4.1K | 0.01 | | 0.05 | |
| OTF | Blue Owl Technology Finance Corp | 9.670 | 9.455 | 9.510 | 2.68M | -0.110 | | 1.14 | |
| OXY | Occidental Petroleum Corp | 64.19 | 63.34 | 64.00 | 5.03M | 0.99 | | 1.57 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 42.03 | 41.43 | 41.97 | 28.6K | 1.05 | | 2.57 | |