| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 20.07 | 19.95 | 20.04 | 16.5K | 0.00 | | 0.02 | |
| OCA.U | Omnichannel Acquisition Corp | 10.61 | 10.23 | 10.28 | 1.9K | -0.02 | | 0.19 | |
| OCA.W | Omnichannel Acquisition Corp WT | 0.0353 | 0.0351 | 0.0353 | 200 | -0.0047 | | 11.75 | |
| OCAC | Ocean Capital Acquisition Corporation | 9.995 | 9.990 | 9.990 | 45.7K | -0.010 | | 0.10 | |
| OHI | Omega Healthcare Investors | 44.04 | 43.45 | 44.01 | 611.5K | 0.26 | | 0.58 | |
| OIA | Invesco Muni Income Trust | 5.725 | 5.670 | 5.710 | 80.3K | 0.010 | | 0.18 | |
| OII | Oceaneering International | 44.94 | 43.33 | 44.86 | 208.2K | 1.15 | | 2.63 | |
| OPP | Doubleline Strategic Opportunity Fund | 6.960 | 6.850 | 6.880 | 69.9K | -0.015 | | 0.22 | |
| OPP-A | Rivernorth/Doubleline Strategic | 14.80 | 14.63 | 14.63 | 4.6K | -0.14 | | 0.95 | |
| OPTU | Optimum Communications Inc | 1.0000 | 0.9207 | 0.9579 | 915.3K | -0.0384 | | 3.85 | |
| ORC | Orchid Island Capital Inc | 5.025 | 4.850 | 4.945 | 5.62M | -0.070 | | 1.40 | |
| ORI | Old Republic International Corp | 38.57 | 37.66 | 38.57 | 286.9K | 0.86 | | 2.27 | |
| OSG | Overseas Shipholding Group Inc | 4.810 | 4.545 | 4.810 | 116.2K | 0.190 | | 4.11 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.20 | 10.17 | 10.20 | 500 | 0.03 | | 0.29 | |
| OTAI | Starlink AI Acquisition Corp. | 10.10 | 10.04 | 10.04 | 379 | -0.01 | | 0.06 | |
| OTF | Blue Owl Technology Finance Corp | 9.385 | 9.180 | 9.335 | 799.2K | 0.105 | | 1.14 | |
| OXY | Occidental Petroleum Corp | 60.06 | 58.40 | 59.98 | 4.66M | 1.76 | | 3.02 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 37.04 | 35.75 | 36.25 | 51.6K | -0.14 | | 0.38 | |