| Code | Name | High | Low | Close | Volume | Change | |
|---|
| O | Realty Income Corp | 77.83 | 76.95 | 77.13 | 1,001,800 | -0.11 |  | 0.14 |   |
| OAC | Oaktree Acquisition Corp Cl A | 10.05 | 10.05 | 10.05 | 40,000 | -0.02 | | 0.20 | |
| OAC.U | Oaktree Acquisition Corp | 10.40 | 10.40 | 10.40 | 1,200 | 0.00 |  | 0.00 | |
| OAC.W | Oaktree Acquisition Corp WT | 1.120 | 1.050 | 1.050 | 19,300 | -0.250 | | 19.23 | |
| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 27.60 | 27.49 | 27.53 | 2,900 | -0.08 | | 0.27 | |
| OAK-B | Oaktree Cap Group Llc [Oak/Pb] | 27.95 | 27.80 | 27.89 | 3,600 | -0.06 | | 0.21 | |
| OBE | Obsidian Energy Ltd | 0.8258 | 0.7825 | 0.8018 | 129,000 | -0.0254 | | 3.07 | |
| OC | Owens Corning Inc | 67.27 | 64.62 | 65.33 | 964,100 | -1.94 | | 2.88 | |
| OCFT | Oneconnect Financial Technology Co. Ltd | 14.73 | 13.35 | 13.74 | 430,500 | -0.78 | | 5.37 | |
| OCN | Ocwen Financial Corp | 1.400 | 1.340 | 1.340 | 330,300 | -0.050 | | 3.60 | |
| ODC | Oil-Dri Corp of America | 37.19 | 36.47 | 36.61 | 7,200 | 0.16 |  | 0.44 | |
| OEC | Orion Engineered Carbons S.A R | 17.40 | 16.91 | 17.00 | 381,900 | -0.39 | | 2.24 | |
| OFC | Corporate Office Properties | 30.20 | 29.77 | 29.98 | 339,600 | -0.06 | | 0.20 | |
| OFG | Oriental Financial Group | 21.66 | 20.59 | 20.80 | 281,300 | -0.82 | | 3.79 | |
| OFG-A | Ofg Bancorp [Ofg/Pa] | 26.35 | 26.24 | 26.35 | 500 | 0.15 | | 0.58 | |
| OFG-B | Ofg Bancorp [Ofg/Pb] | 26.46 | 26.46 | 26.46 | 100 | 0.00 | | 0.00 | |
| OFG-D | Ofg Bancorp [Ofg/Pd] | 26.61 | 26.48 | 26.61 | 1,400 | 0.12 | | 0.46 | |
| OGE | Oge Energy Corp | 46.09 | 45.30 | 45.52 | 1,085,400 | -0.29 | | 0.63 | |
| OGS | One Gas Inc | 96.10 | 94.94 | 95.42 | 357,500 | -0.34 | | 0.36 | |
| OHI | Omega Healthcare Investors | 43.56 | 43.06 | 43.29 | 1,117,000 | 0.06 | | 0.14 | |
| OI | Owens-Illinois | 12.62 | 12.32 | 12.52 | 2,100,200 | -0.10 | | 0.79 | |
| OIA | Invesco Muni Income Trust | 8.080 | 8.026 | 8.080 | 37,600 | 0.030 | | 0.37 | |
| OIB.C | Oi S.A. [Oibr.C] | 1.230 | 1.060 | 1.060 | 10,415,000 | -0.170 | | 13.82 | |
| OII | Oceaneering International | 14.18 | 13.09 | 13.33 | 1,191,500 | -0.92 | | 6.46 | |
| OIS | Oil States International | 13.80 | 12.59 | 13.01 | 1,334,300 | -1.49 | | 10.28 | |
| OKE | Oneok Inc | 75.53 | 74.40 | 74.84 | 1,774,700 | -1.45 | | 1.90 | |
| OLN | Olin Corp | 16.93 | 16.29 | 16.37 | 1,958,100 | -0.61 | | 3.59 | |
| OLP | One Liberty Properties | 29.00 | 28.57 | 28.70 | 62,500 | -0.06 | | 0.21 | |
| OMC | Omnicom Group Inc | 78.85 | 77.58 | 77.70 | 1,714,900 | -1.05 | | 1.33 | |
| OMF | Onemain Holdings Inc | 43.53 | 42.14 | 42.66 | 451,000 | -0.99 | | 2.27 | |
| OMI | Owens & Minor | 6.770 | 6.120 | 6.270 | 1,806,800 | -0.420 | | 6.28 | |
| OMN | Omnova Solutions Inc | 10.12 | 10.11 | 10.11 | 109,800 | 0.00 | | 0.00 | |
| ONDK | On Deck Capital Inc | 4.190 | 4.110 | 4.170 | 223,200 | 0.040 | | 0.97 | |
| ONE | Onesmart International Education Group | 6.449 | 6.320 | 6.400 | 190,900 | -0.100 | | 1.54 | |
| ONTO | Onto Innovation Inc. | 39.73 | 38.27 | 38.55 | 271,200 | -0.71 | | 1.81 | |
| OOMA | Ooma Inc | 13.29 | 12.62 | 12.72 | 60,400 | -0.49 | | 3.71 | |
| OPP | Rivernorth/Doubleline Strategic | 16.65 | 16.55 | 16.55 | 58,800 | -0.02 | | 0.12 | |
| OPY | Oppenheimer Holdings | 27.07 | 26.26 | 26.48 | 45,300 | -0.49 | | 1.82 | |
| OR | Osisko Gold Royalties Ltd | 9.760 | 9.550 | 9.710 | 556,600 | 0.150 | | 1.57 | |
| ORA | Ormat Technologies | 82.71 | 80.94 | 81.31 | 102,600 | -0.04 | | 0.05 | |
| ORAN | Orange ADR | 14.47 | 14.34 | 14.36 | 1,089,000 | -0.10 | | 0.69 | |
| ORC | Orchid Island Capital Inc | 6.360 | 6.060 | 6.200 | 1,305,000 | -0.150 | | 2.36 | |
| ORCC | Owl Rock Capital Corp | 16.12 | 15.88 | 15.91 | 842,700 | -0.07 | | 0.44 | |
| ORCL | Oracle Corp | 55.20 | 53.88 | 54.07 | 6,426,000 | -0.91 | | 1.66 | |
| ORI | Old Republic International Corp | 23.61 | 22.71 | 23.38 | 2,334,100 | 0.70 | | 3.09 | |
| ORN | Orion Group Holdings Inc | 5.171 | 4.930 | 4.960 | 66,600 | -0.190 | | 3.69 | |
| OSB | Norbord Inc | 29.70 | 29.26 | 29.58 | 157,800 | -0.06 | | 0.20 | |
| OSG | Overseas Shipholding Group Inc | 1.990 | 1.840 | 1.890 | 344,000 | -0.110 | | 5.50 | |
| OSK | Oshkosh Truck Corp | 89.80 | 88.17 | 89.30 | 649,800 | -0.32 | | 0.36 | |
| OSLE | Oaktree Specialty Lending Corp | 25.85 | 25.76 | 25.78 | 1,400 | -0.12 | | 0.46 | |
| OUT | Outfront Media Inc | 30.41 | 29.99 | 30.20 | 978,300 | 0.07 | | 0.23 | |
| OXM | Oxford Industries | 73.10 | 71.68 | 72.28 | 95,800 | -0.61 | | 0.84 | |
| OXY | Occidental Petroleum Corp | 42.69 | 41.84 | 42.22 | 8,797,500 | -0.30 | | 0.71 | |