| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.22 | 20.15 | 20.16 | 5.6K | -0.05 | | 0.25 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 19.99 | 19.93 | 19.97 | 4.3K | 0.02 | | 0.09 | |
| OCA.U | Omnichannel Acquisition Corp | 11.00 | 10.12 | 10.21 | 600 | -0.01 | | 0.10 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0400 | 0.0400 | 0.0400 | 250.0K | 0.0042 | | 11.73 | |
| OCAC | Ocean Capital Acquisition Corporation | 9.970 | 9.950 | 9.950 | 268.8K | -0.020 | | 0.20 | |
| OHI | Omega Healthcare Investors | 47.12 | 46.43 | 46.66 | 847.9K | -0.37 | | 0.79 | |
| OIA | Invesco Muni Income Trust | 5.980 | 5.930 | 5.931 | 41.9K | -0.049 | | 0.82 | |
| OII | Oceaneering International | 51.47 | 48.45 | 49.18 | 331.2K | -1.50 | | 2.96 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.520 | 7.380 | 7.414 | 88.8K | -0.046 | | 0.62 | |
| OPP-A | Rivernorth/Doubleline Strategic | 15.34 | 15.25 | 15.25 | 3.0K | 0.01 | | 0.06 | |
| OPP-B | Rivernorth/Doubleline Strategic | 16.61 | 16.30 | 16.34 | 9.5K | -0.19 | | 1.12 | |
| OPTU | Optimum Communications Inc | 0.9876 | 0.9464 | 0.9605 | 791.7K | -0.0271 | | 2.74 | |
| ORC | Orchid Island Capital Inc | 6.575 | 6.515 | 6.530 | 1.02M | -0.010 | | 0.15 | |
| ORI | Old Republic International Corp | 40.77 | 40.25 | 40.69 | 197.2K | -0.09 | | 0.21 | |
| OSG | Overseas Shipholding Group Inc | 4.980 | 4.840 | 4.975 | 93.6K | 0.025 | | 0.51 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.17 | 10.16 | 10.17 | 2.4K | 0.02 | | 0.18 | |
| OTAI | Starlink AI Acquisition Corp. | 10.01 | 10.00 | 10.01 | 700 | 0.01 | | 0.10 | |
| OTF | Blue Owl Technology Finance Corp | 11.02 | 10.89 | 11.02 | 985.1K | 0.02 | | 0.14 | |
| OXY | Occidental Petroleum Corp | 62.21 | 61.21 | 61.43 | 4.16M | 0.78 | | 1.29 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 39.99 | 38.36 | 38.61 | 38.1K | 0.65 | | 1.71 | |