| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.37 | 20.22 | 20.22 | 9.2K | -0.35 | | 1.70 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.21 | 19.96 | 20.02 | 4.5K | -0.42 | | 2.05 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0400 | 0.0358 | 0.0358 | 36.9K | -0.0041 | | 10.28 | |
| OCAC | Ocean Capital Acquisition Corporation | 9.970 | 9.960 | 9.960 | 2.7K | -0.010 | | 0.10 | |
| OHI | Omega Healthcare Investors | 46.95 | 45.16 | 46.79 | 890.5K | 1.07 | | 2.34 | |
| OIA | Invesco Muni Income Trust | 6.063 | 5.950 | 5.990 | 68.7K | -0.080 | | 1.32 | |
| OII | Oceaneering International | 52.70 | 51.18 | 51.30 | 296.6K | -0.44 | | 0.85 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.510 | 7.400 | 7.430 | 82.8K | -0.040 | | 0.54 | |
| OPP-A | Rivernorth/Doubleline Strategic | 15.40 | 15.35 | 15.37 | 5.5K | 0.00 | | 0.03 | |
| OPP-B | Rivernorth/Doubleline Strategic | 16.70 | 16.64 | 16.64 | 4.1K | -0.01 | | 0.06 | |
| OPTU | Optimum Communications Inc | 1.0000 | 0.9205 | 0.9433 | 1.15M | -0.0315 | | 3.24 | |
| ORC | Orchid Island Capital Inc | 6.531 | 6.360 | 6.531 | 684 | -0.009 | | 0.13 | |
| ORI | Old Republic International Corp | 42.28 | 41.49 | 41.72 | 442.3K | -0.01 | | 0.02 | |
| OSG | Overseas Shipholding Group Inc | 4.560 | 4.325 | 4.540 | 767.6K | 0.180 | | 4.13 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.19 | 10.15 | 10.15 | 4.0K | -0.03 | | 0.29 | |
| OTAI | Starlink AI Acquisition Corp. | 10.000 | 9.980 | 10.000 | 6.6K | 0.005 | | 0.05 | |
| OTF | Blue Owl Technology Finance Corp | 11.80 | 11.40 | 11.64 | 2.29M | -0.06 | | 0.51 | |
| OXY | Occidental Petroleum Corp | 61.39 | 60.98 | 61.26 | 33.2K | 0.31 | | 0.51 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 39.11 | 38.14 | 38.96 | 38.4K | 0.86 | | 2.26 | |