| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.25 | 21.03 | 21.14 | 8.8K | -0.04 | | 0.21 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.00 | 20.75 | 20.75 | 23.1K | -0.16 | | 0.77 | |
| OHI | Omega Healthcare Investors | 50.75 | 49.75 | 50.24 | 323.0K | 0.37 | | 0.74 | |
| OII | Oceaneering International | 42.94 | 41.42 | 42.19 | 123.5K | -0.11 | | 0.26 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.740 | 7.650 | 7.708 | 23.8K | -0.022 | | 0.28 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.20 | 16.00 | 16.02 | 4.9K | -0.14 | | 0.88 | |
| OPP-B | Rivernorth/Doubleline Strategic | 17.78 | 17.25 | 17.40 | 8.8K | -0.05 | | 0.29 | |
| OPTU | Optimum Communications Inc | 0.9100 | 0.8400 | 0.8564 | 3.84M | -0.0318 | | 3.58 | |
| ORC | Orchid Island Capital Inc | 7.000 | 6.880 | 6.900 | 1.13M | -0.090 | | 1.29 | |
| ORI | Old Republic International Corp | 42.65 | 41.93 | 42.40 | 131.6K | 0.92 | | 2.22 | |
| OSG | Overseas Shipholding Group Inc | 6.265 | 6.060 | 6.160 | 43.9K | 0.060 | | 0.98 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.16 | 10.10 | 10.16 | 15.3K | 0.01 | | 0.10 | |
| OTAI | Starlink AI Acquisition Corp. | 9.970 | 9.970 | 9.970 | 3.3K | 0.020 | | 0.20 | |
| OTF | Blue Owl Technology Finance Corp | 10.47 | 10.12 | 10.15 | 1.0M | -0.15 | | 1.41 | |
| OXY | Occidental Petroleum Corp | 55.17 | 53.40 | 54.21 | 2.4M | 0.56 | | 1.03 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 32.18 | 31.64 | 31.67 | 10.8K | -0.10 | | 0.31 | |