| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.26 | 21.11 | 21.23 | 3.0K | 0.07 | | 0.32 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.20 | 21.10 | 21.16 | 2.5K | -0.05 | | 0.26 | |
| OHI | Omega Healthcare Investors | 49.18 | 49.02 | 49.03 | 1.1K | 0.01 | | 0.02 | |
| OIA | Invesco Muni Income Trust | 6.260 | 6.210 | 6.225 | 63.0K | -0.020 | | 0.32 | |
| OII | Oceaneering International | 38.98 | 38.90 | 38.98 | 200 | 0.10 | | 0.26 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.720 | 7.650 | 7.680 | 90.8K | -0.020 | | 0.26 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.28 | 16.19 | 16.19 | 3.3K | -0.02 | | 0.12 | |
| OPP-B | Rivernorth/Doubleline Strategic | 17.43 | 17.33 | 17.38 | 4.9K | 0.08 | | 0.46 | |
| OPTU | Optimum Communications Inc | 1.250 | 1.200 | 1.250 | 10.4K | 0.020 | | 1.63 | |
| ORC | Orchid Island Capital Inc | 6.920 | 6.870 | 6.900 | 9.6K | 0.005 | | 0.07 | |
| ORI | Old Republic International Corp | 41.80 | 41.57 | 41.80 | 1.4K | 0.23 | | 0.55 | |
| OSG | Overseas Shipholding Group Inc | 6.420 | 6.420 | 6.420 | 300 | 0.000 | | 0.00 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.19 | 10.12 | 10.17 | 6.1K | 0.02 | | 0.20 | |
| OTF | Blue Owl Technology Finance Corp | 10.54 | 10.35 | 10.42 | 4.8K | 0.05 | | 0.48 | |
| OXY | Occidental Petroleum Corp | 49.42 | 48.89 | 49.42 | 25.4K | 0.60 | | 1.23 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 27.23 | 26.53 | 26.93 | 21.0K | -0.03 | | 0.11 | |