| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.69 | 20.46 | 20.65 | 3.6K | -0.04 | | 0.19 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.39 | 20.22 | 20.33 | 7.1K | -0.03 | | 0.15 | |
| OCA.U | Omnichannel Acquisition Corp | 10.23 | 10.23 | 10.23 | 100 | -0.32 | | 3.03 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0400 | 0.0358 | 0.0358 | 36.9K | -0.0041 | | 10.28 | |
| OHI | Omega Healthcare Investors | 46.85 | 46.26 | 46.81 | 395.4K | 0.20 | | 0.43 | |
| OIA | Invesco Muni Income Trust | 6.040 | 6.020 | 6.040 | 62.1K | 0.030 | | 0.50 | |
| OII | Oceaneering International | 52.18 | 50.00 | 51.04 | 424.2K | 0.59 | | 1.17 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.540 | 7.420 | 7.480 | 104.9K | 0.020 | | 0.27 | |
| OPP-A | Rivernorth/Doubleline Strategic | 15.33 | 15.20 | 15.23 | 4.6K | -0.06 | | 0.39 | |
| OPP-B | Rivernorth/Doubleline Strategic | 16.60 | 16.40 | 16.41 | 9.1K | -0.03 | | 0.18 | |
| OPTU | Optimum Communications Inc | 0.9530 | 0.8500 | 0.9407 | 824.6K | 0.0767 | | 8.88 | |
| ORC | Orchid Island Capital Inc | 6.780 | 6.675 | 6.705 | 2.89M | -0.055 | | 0.81 | |
| ORI | Old Republic International Corp | 42.10 | 41.46 | 42.01 | 345.8K | 0.02 | | 0.05 | |
| OSG | Overseas Shipholding Group Inc | 4.650 | 4.450 | 4.535 | 84.3K | 0.005 | | 0.11 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.20 | 10.16 | 10.20 | 8.3K | 0.02 | | 0.20 | |
| OTAI | Starlink AI Acquisition Corp. | 12.01 | 9.70 | 10.02 | 17.8K | 0.01 | | 0.10 | |
| OTF | Blue Owl Technology Finance Corp | 11.27 | 11.00 | 11.13 | 1.15M | 0.01 | | 0.04 | |
| OXY | Occidental Petroleum Corp | 60.06 | 58.57 | 59.06 | 2.72M | -1.06 | | 1.76 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 38.90 | 37.65 | 38.08 | 17.3K | -1.28 | | 3.25 | |