| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OASM | Oasmia Pharmaceu Ads | 1.620 | 1.610 | 1.615 | 2,200 | -0.055 |  | 3.29 |   |
| OBAS | Optibase Ltd | 12.15 | 11.35 | 12.15 | 5,200 | 1.16 |  | 10.56 | |
| OBCI | Ocean Bio Chem Inc | 3.550 | 3.340 | 3.490 | 50,400 | 0.030 | | 0.87 | |
| OBLN | Obalon Therapeutics Inc | 0.9400 | 0.6300 | 0.6800 | 24,856,300 | -0.6200 | | 47.69 | |
| OBNK | Origin Bancorp Inc | 33.76 | 32.71 | 33.27 | 17,700 | -0.28 | | 0.83 | |
| OBSV | Obseva Sa | 13.15 | 12.50 | 12.63 | 31,900 | 0.11 | | 0.88 | |
| OCC | Optical Cable Corp | 4.689 | 4.601 | 4.683 | 6,300 | -0.077 | | 1.62 | |
| OCCI | Ofs Credit Company Inc | 18.48 | 18.13 | 18.18 | 7,100 | -0.40 | | 2.16 | |
| OCCIP | Ofs Credit CO Inc Pfd Ser A | 25.18 | 25.03 | 25.17 | 15,100 | -0.11 | | 0.44 | |
| OCFC | Oceanfirst Finl Corp | 24.50 | 24.00 | 24.14 | 88,300 | -0.49 | | 1.99 | |
| OCSI | Oaktree Strategic Income Corp | 8.600 | 8.500 | 8.530 | 285,900 | 0.000 |  | 0.00 | |
| OCSL | Oaktree Specialty Lending Corp | 5.620 | 5.470 | 5.540 | 538,600 | -0.090 | | 1.60 | |
| OCSLL | Oaktree Specialty Lending Corp 6.125 Sn | 25.21 | 25.00 | 25.19 | 5,600 | 0.06 | | 0.23 | |
| OCUL | Ocular Therapeut | 2.620 | 2.440 | 2.460 | 927,100 | -0.190 | | 7.17 | |
| ODFL | Old Dominion Freig | 141.8 | 139.0 | 139.7 | 502,700 | -4.1 | | 2.82 | |
| ODP | Office Depot | 2.030 | 1.920 | 1.990 | 8,772,500 | -0.030 | | 1.49 | |
| ODT | Odonate Therapeutics Inc | 22.80 | 21.66 | 22.10 | 46,400 | -0.45 | | 2.00 | |
| OESX | Orion Energy Syst | 2.030 | 1.950 | 1.990 | 124,400 | -0.040 | | 1.97 | |
| OFED | Oconee Fed Fin Corp | 23.21 | 23.07 | 23.21 | 1,700 | -0.11 | | 0.47 | |
| OFIX | Orthofix Intl NV | 50.97 | 48.85 | 49.73 | 111,500 | -1.49 | | 2.91 | |
| OFLX | Omega Flex Inc | 86.61 | 85.81 | 85.81 | 3,900 | -1.69 | | 1.93 | |
| OFS | Ofs Capital Corporat | 12.35 | 12.21 | 12.32 | 33,700 | -0.02 | | 0.16 | |
| OFSSL | Ofs Capital Corp 6.375% Notes Due 2025 | 25.23 | 25.05 | 25.20 | 11,500 | -0.03 | | 0.12 | |
| OFSSZ | Ofs Capital Corp 6.50% Notes Due 2025 | 25.35 | 25.32 | 25.35 | 400 | 0.10 | | 0.40 | |
| OGI | Organigram Hldgs Inc | 7.590 | 7.150 | 7.220 | 1,317,000 | -0.390 | | 5.12 | |
| OHAI | Oha Investmnt Cp | 1.133 | 1.130 | 1.130 | 1,000 | 0.000 | | 0.00 | |
| OHRP | Ohr Pharmceutial | 3.100 | 2.910 | 2.910 | 30,400 | -0.130 | | 4.28 | |
| OIIM | O2Micro Intl Ltd | 1.440 | 1.400 | 1.406 | 14,700 | -0.054 | | 3.68 | |
| OKDCC | Eaton Vance Nextshares Trust II Eaton | 99.89 | 99.89 | 99.89 | 100 | -0.07 | | 0.07 | |
| OKTA | Okta Inc Cl A | 109.0 | 105.3 | 108.0 | 2,049,700 | -1.7 | | 1.56 | |
| OLBK | Old Line Bancshs MD | 25.08 | 24.60 | 24.94 | 173,600 | -0.37 | | 1.46 | |
| OLD | Long-Term Care ETF | 27.98 | 27.95 | 27.97 | 1,500 | -0.09 | | 0.33 | |
| OLED | Universal Display | 157.3 | 148.6 | 150.4 | 1,125,200 | -10.0 | | 6.24 | |
| OLLI | Ollies Bargain CS | 101.00 | 98.78 | 99.60 | 639,900 | -0.25 | | 0.25 | |
| OMAB | Grupo Aeroportuario | 50.40 | 49.15 | 49.91 | 33,400 | 0.04 | | 0.08 | |
| OMCL | Omnicell Inc | 81.49 | 79.17 | 79.57 | 234,800 | -2.18 | | 2.67 | |
| OMER | Omeros Corp | 19.50 | 18.80 | 18.98 | 621,900 | -0.22 | | 1.15 | |
| OMEX | Odyssey Marine Expl | 4.512 | 4.250 | 4.370 | 29,400 | 0.080 | | 1.86 | |
| ON | On Semiconductor | 17.96 | 17.50 | 17.90 | 10,002,400 | -0.26 | | 1.43 | |
| ONB | Old National Bncp | 16.52 | 16.13 | 16.30 | 685,300 | -0.34 | | 2.04 | |
| ONCE | Spark Therap | 109.0 | 107.7 | 108.8 | 322,400 | 0.8 | | 0.72 | |
| ONCS | Oncosec Medical | 2.800 | 2.460 | 2.570 | 470,700 | -0.130 | | 4.81 | |
| ONCY | Oncolytics Biotech Inc | 1.900 | 1.740 | 1.870 | 60,700 | 0.110 | | 6.25 | |
| ONEQ | Nasdaq Composite ETF | 301.8 | 298.3 | 299.9 | 47,900 | -5.2 | | 1.69 | |
| ONTX | Onconova Therapeutic | 3.620 | 3.200 | 3.270 | 64,500 | -0.240 | | 6.84 | |
| ONVO | Organovo Holdings | 0.7669 | 0.5213 | 0.5446 | 3,745,700 | -0.3550 | | 39.46 | |
| OPB | Opus Bank | 20.88 | 20.36 | 20.66 | 129,700 | -0.44 | | 2.09 | |
| OPBK | Open Bank | 10.171 | 9.760 | 9.770 | 26,000 | -0.470 | | 4.59 | |
| OPES | Opes Acquisition Corp | 10.24 | 10.24 | 10.24 | 100 | 0.01 | | 0.10 | |
| OPESU | Opes Acquisition Corp Unit | 10.40 | 10.40 | 10.40 | 400 | 0.00 | | 0.00 | |
| OPESW | Opes Acquisition Corp Wtarrant | 0.2000 | 0.2000 | 0.2000 | 800 | 0.0000 | | 0.00 | |
| OPGN | Opgen Inc | 0.4699 | 0.4277 | 0.4515 | 58,100 | -0.0077 | | 1.68 | |
| OPGNW | Opgen Inc Warrant | 0.1004 | 0.1000 | 0.1004 | 400 | -0.3385 | | 77.12 | |
| OPHC | Optimumbank Hldgs | 3.480 | 3.480 | 3.480 | 700 | -0.020 | | 0.56 | |
| OPI | Office Properties Income Trust | 25.02 | 24.14 | 24.35 | 383,400 | -0.77 | | 3.07 | |
| OPINI | Office Properties Income Trust | 25.00 | 24.86 | 25.00 | 10,800 | 0.15 | | 0.60 | |
| OPK | Opko Health Inc | 1.980 | 1.900 | 1.920 | 4,442,500 | -0.060 | | 3.03 | |
| OPNT | Opiant Pharmaceuticals Inc | 10.86 | 10.50 | 10.82 | 2,400 | -0.12 | | 1.10 | |
| OPOF | Old Point Finl Cp | 21.31 | 21.10 | 21.10 | 1,200 | -0.19 | | 0.89 | |
| OPRA | Opera Limited ADR | 9.850 | 9.240 | 9.400 | 206,700 | -0.390 | | 3.98 | |
| OPRX | Optimizerx Corp | 16.20 | 14.80 | 15.10 | 25,500 | -0.56 | | 3.58 | |
| OPTN | Optinose Inc | 8.640 | 8.060 | 8.170 | 113,900 | -0.510 | | 5.88 | |
| OPTT | Ocean Power Tech Inc | 2.140 | 1.990 | 2.050 | 283,900 | -0.070 | | 3.30 | |
| ORBC | Orbcomm Inc | 7.060 | 6.791 | 6.830 | 506,900 | -0.250 | | 3.53 | |
| ORG | Organics ETF | 27.17 | 27.06 | 27.14 | 5,100 | -0.17 | | 0.60 | |
| ORGO | Organogenesis Holdings Inc | 7.150 | 6.900 | 7.130 | 49,200 | 0.050 | | 0.71 | |
| ORGS | Orgenesis Inc | 4.500 | 4.234 | 4.400 | 37,300 | 0.020 | | 0.46 | |
| ORIT | Oritani Financial | 16.44 | 16.10 | 16.20 | 83,300 | -0.37 | | 2.23 | |
| ORLY | O'Reilly Automotive | 367.9 | 362.1 | 366.1 | 705,600 | -2.5 | | 0.67 | |
| ORMP | Oramed Pharma | 2.960 | 2.830 | 2.890 | 67,100 | -0.080 | | 2.69 | |
| ORRF | Orrstown Finl Svcs | 20.99 | 20.75 | 20.96 | 15,000 | -0.03 | | 0.14 | |
| ORTX | Orchard Therapeutics Plc ADR | 18.63 | 18.35 | 18.52 | 101,100 | 0.00 | | 0.00 | |
| OSBC | Old Second Bancorp | 12.65 | 12.36 | 12.51 | 55,400 | -0.21 | | 1.65 | |
| OSBCP | Old Second Bncp | 10.70 | 10.70 | 10.70 | 400 | -0.05 | | 0.47 | |
| OSIS | O S I Systems Inc | 102.3 | 101.0 | 101.6 | 149,400 | -0.9 | | 0.83 | |
| OSMT | Osmotica Pharmaceuticals Plc | 2.570 | 2.200 | 2.380 | 573,800 | -0.220 | | 8.46 | |
| OSN | Ossen Innovation CO | 1.911 | 1.770 | 1.900 | 9,400 | 0.110 | | 6.15 | |
| OSPN | Onespan Inc | 14.01 | 13.49 | 13.63 | 210,400 | -0.48 | | 3.40 | |
| OSS | One Stop Systems Inc | 2.004 | 1.910 | 1.920 | 18,600 | -0.070 | | 3.52 | |
| OSTK | Overstock.com Inc | 11.08 | 10.33 | 10.53 | 1,180,200 | -0.35 | | 3.22 | |
| OSUR | Orasure Tech Inc | 8.470 | 8.120 | 8.170 | 716,400 | -0.220 | | 2.62 | |
| OSW | Onespaworld Holdings Ltd | 13.10 | 12.87 | 13.00 | 306,900 | -0.12 | | 0.91 | |
| OTEL | Otelco Cl A | 15.66 | 15.30 | 15.45 | 12,200 | 0.06 | | 0.39 | |
| OTEX | Open Text Cp | 40.79 | 40.11 | 40.35 | 549,300 | -0.68 | | 1.66 | |
| OTIC | Otonomy Inc | 2.670 | 2.490 | 2.580 | 85,400 | -0.100 | | 3.73 | |
| OTIV | On Track Innovations | 0.5100 | 0.4800 | 0.4821 | 7,700 | -0.0279 | | 5.47 | |
| OTLK | Outlook Therapeutics Inc | 2.390 | 1.960 | 1.960 | 6,284,900 | -0.570 | | 22.53 | |
| OTLKW | Outlook Therapeutics Inc | 0.3000 | 0.2350 | 0.2924 | 57,600 | 0.0624 | | 27.13 | |
| OTTR | Otter Tail Corp | 51.35 | 50.83 | 51.00 | 57,700 | -0.24 | | 0.47 | |
| OTTW | Ottawa Saving Bcp IL | 13.75 | 13.35 | 13.35 | 15,600 | -0.40 | | 2.91 | |
| OVBC | Ohio Valley Banc Cp | 38.17 | 37.44 | 37.44 | 5,200 | -0.84 | | 2.19 | |
| OVID | Ovid Therapeutics Inc | 1.670 | 1.600 | 1.650 | 201,300 | 0.010 | | 0.61 | |
| OVLY | Oak Valley Bancp CA | 19.20 | 18.61 | 18.78 | 2,300 | -0.52 | | 2.69 | |
| OXBR | Oxbridge Ord Shrs | 1.152 | 1.100 | 1.152 | 1,000 | 0.042 | | 3.75 | |
| OXBRW | Oxbridge Warrants | 0.0400 | 0.0400 | 0.0400 | 1,300 | 0.0000 | | 0.00 | |
| OXFD | Oxford Immunotec | 14.80 | 14.26 | 14.52 | 346,800 | -0.33 | | 2.22 | |
| OXLC | Oxford Lane Capital | 10.48 | 10.26 | 10.44 | 534,300 | -0.12 | | 1.14 | |
| OXLCM | Oxford Lane Capital Corp Pfd Ser 2024 | 26.00 | 25.60 | 25.65 | 13,365 | 0.07 | | 0.26 | |
| OXLCO | Oxford Lane Cap 7.5 | 25.51 | 25.32 | 25.51 | 3,600 | -0.05 | | 0.21 | |
| OXSQ | Oxford Square Capital Corp | 6.410 | 6.310 | 6.340 | 132,800 | -0.120 | | 1.86 | |
| OXSQL | Oxford Square Capital Corp 6.50% Note | 25.42 | 25.18 | 25.41 | 8,200 | -0.08 | | 0.31 | |
| OXSQZ | Oxford Square Capital Corp. 6.25% Notes | 25.00 | 24.95 | 24.95 | 1,600 | -0.13 | | 0.52 | |
| OZK | Bank Ozk | 31.40 | 30.33 | 30.62 | 1,182,700 | -1.17 | | 3.68 | |