| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.18 | 20.90 | 21.14 | 12.1K | 0.06 | | 0.28 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.97 | 20.87 | 20.91 | 11.5K | 0.04 | | 0.20 | |
| OHI | Omega Healthcare Investors | 43.93 | 43.76 | 43.89 | 42.0K | -0.08 | | 0.18 | |
| OII | Oceaneering International | 24.72 | 23.80 | 24.62 | 53.6K | 1.01 | | 4.26 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.845 | 7.810 | 7.835 | 6.8K | -0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.93 | 16.86 | 16.93 | 6.2K | -0.01 | | 0.06 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.67 | 18.47 | 18.67 | 500 | 0.07 | | 0.35 | |
| OPTU | Optimum Communications Inc | 1.746 | 1.685 | 1.745 | 101.5K | 0.045 | | 2.65 | |
| ORC | Orchid Island Capital Inc | 7.400 | 7.300 | 7.395 | 693.3K | 0.055 | | 0.75 | |
| ORI | Old Republic International Corp | 46.02 | 45.35 | 45.54 | 37.0K | 0.03 | | 0.06 | |
| OSG | Overseas Shipholding Group Inc | 8.290 | 8.210 | 8.250 | 8.2K | -0.040 | | 0.48 | |
| OTF | Blue Owl Technology Finance Corp | 13.76 | 13.61 | 13.76 | 45.3K | 0.19 | | 1.40 | |
| OXY | Occidental Petroleum Corp | 40.47 | 39.73 | 40.17 | 983.9K | 0.55 | | 1.38 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 18.21 | 17.55 | 17.77 | 117.4K | -0.11 | | 0.62 | |