| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 19.88 | 19.51 | 19.51 | 8.8K | -0.18 | | 0.91 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 19.41 | 19.24 | 19.35 | 9.5K | -0.02 | | 0.10 | |
| OCA.U | Omnichannel Acquisition Corp | 10.31 | 10.31 | 10.31 | 200 | 0.04 | | 0.39 | |
| 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 | 47.05 | 47.24 | 361.3K | 0.39 | | 0.82 | |
| OIA | Invesco Muni Income Trust | 5.850 | 5.770 | 5.790 | 126.0K | -0.010 | | 0.17 | |
| OII | Oceaneering International | 41.90 | 40.31 | 40.56 | 153.3K | -0.99 | | 2.38 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.060 | 6.950 | 6.995 | 34.6K | 0.005 | | 0.07 | |
| OPP-A | Rivernorth/Doubleline Strategic | 14.71 | 14.50 | 14.62 | 14.9K | 0.14 | | 0.97 | |
| OPP-B | Rivernorth/Doubleline Strategic | 15.89 | 15.85 | 15.85 | 1.1K | 0.06 | | 0.38 | |
| OPTU | Optimum Communications Inc | 0.7046 | 0.6116 | 0.7028 | 531.3K | 0.0428 | | 6.48 | |
| ORC | Orchid Island Capital Inc | 4.950 | 4.820 | 4.825 | 2.65M | -0.206 | | 4.10 | |
| ORI | Old Republic International Corp | 39.11 | 38.52 | 38.74 | 228.8K | 0.30 | | 0.78 | |
| OSG | Overseas Shipholding Group Inc | 5.020 | 4.910 | 4.940 | 112.5K | -0.020 | | 0.40 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.35 | 10.33 | 10.33 | 1.2K | 0.00 | | 0.04 | |
| OTAI | Starlink AI Acquisition Corp. | 10.15 | 10.09 | 10.12 | 2.0K | 0.01 | | 0.12 | |
| OTF | Blue Owl Technology Finance Corp | 9.670 | 9.500 | 9.505 | 828.1K | -0.115 | | 1.20 | |
| OXY | Occidental Petroleum Corp | 64.19 | 63.34 | 63.82 | 2.55M | 0.81 | | 1.28 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 41.17 | 40.12 | 40.92 | 30.4K | 0.06 | | 0.15 | |