| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.26 | 21.00 | 21.16 | 8.8K | 0.06 | | 0.27 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.24 | 21.07 | 21.21 | 4.4K | 0.15 | | 0.71 | |
| OHI | Omega Healthcare Investors | 49.41 | 48.13 | 49.40 | 766.9K | 1.23 | | 2.55 | |
| OII | Oceaneering International | 40.01 | 37.89 | 38.50 | 328.4K | -0.89 | | 2.26 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.720 | 7.670 | 7.705 | 69.5K | 0.030 | | 0.39 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.50 | 16.21 | 16.21 | 4.0K | -0.15 | | 0.92 | |
| OPP-B | Rivernorth/Doubleline Strategic | 17.55 | 17.30 | 17.30 | 15.5K | -0.01 | | 0.06 | |
| OPTU | Optimum Communications Inc | 1.180 | 0.913 | 1.155 | 9.48M | 0.080 | | 7.41 | |
| ORI | Old Republic International Corp | 41.91 | 40.45 | 41.87 | 2.08M | 0.85 | | 2.07 | |
| OSG | Overseas Shipholding Group Inc | 6.450 | 6.310 | 6.350 | 237.5K | -0.050 | | 0.78 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.15 | 10.10 | 10.15 | 10.4K | 0.03 | | 0.30 | |
| OTF | Blue Owl Technology Finance Corp | 10.94 | 10.45 | 10.48 | 1.64M | -0.20 | | 1.88 | |
| OXY | Occidental Petroleum Corp | 48.97 | 47.82 | 48.90 | 4.56M | 0.97 | | 2.02 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 26.96 | 26.06 | 26.96 | 9.5K | 0.99 | | 3.81 | |