| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OAP3 | Octopus Apollo Vct Plc | 42.70 | 42.20 | 42.70 | 49,218 | 0.00 |  | 0.00 |   |
| OBC | Online Blockchain Plc | 15.00 | 12.06 | 14.00 | 30,723 | 0.50 |  | 3.70 | |
| OBD | Oxford Biodynamics Plc | 114.7 | 110.3 | 113.0 | 10,203 | -0.5 |  | 0.44 | |
| OCDO | Ocado Group Plc | 1,331 | 1,298 | 1,318 | 1,016,087 | 26 | | 2.01 | |
| OCI | Oakley Capital Investments Limited | 268.4 | 263.8 | 268.0 | 75,551 | 4.5 | | 1.71 | |
| OCN | Ocean Wilsons [Holdings] Ld | 1,025 | 1,022 | 1,025 | 843 | 0 | | 0.00 | |
| OCT | Octagonal Plc | 1.625 | 1.500 | 1.625 | 518,927 | 0.000 | | 0.00 | |
| ODX | Omega Diagnostics Group Plc | 15.65 | 15.11 | 15.40 | 263,001 | 0.00 | | 0.00 | |
| OEX | Oilex Ld | 0.1734 | 0.1650 | 0.1700 | 31,785,672 | 0.0000 | | 0.00 | |
| OGDC | Oil and Gas Development | 9.050 | 9.050 | 9.050 | 90 | 0.050 | | 0.56 | |
| OGLD | Deutsche Boerse Commodities Gmbh | 44.84 | 44.84 | 44.84 | 3,000 | -0.11 | | 0.24 | |
| OGN | Origin Enterprises Plc | 3.900 | 3.666 | 3.900 | 7,210 | 0.000 | | 0.00 | |
| OGZD | Oao Gazprom | 7.786 | 7.572 | 7.610 | 12,484,525 | 0.006 | | 0.08 | |
| OGZU | ETFS Metal Securities Limited | 133.9 | 133.9 | 133.9 | 430 | 20.2 | | 17.79 | |
| OIG | Oryx International Growth Fund Ltd | 993.8 | 963.5 | 982.5 | 3,193 | 17.5 | | 1.81 | |
| OIH | Orascom Investment Holding S.A.E | 0.1470 | 0.1350 | 0.1470 | 229,151 | 0.0150 | | 11.36 | |
| OILB | ETFS Oil Securities Ld | 30.35 | 29.43 | 29.43 | 13,795 | -0.67 | | 2.23 | |
| OILW | ETFS Oil Securities Ld | 19.20 | 19.01 | 19.01 | 204 | -0.47 | | 2.43 | |
| OIT | Odyssean Investment Trust Plc | 118.0 | 116.0 | 116.0 | 122,099 | 0.0 | | 0.00 | |
| OKEY | O'Key Group S.A. | 1.410 | 1.330 | 1.330 | 50,367 | -0.060 | | 4.32 | |
| OKYO | Okyo Pharma Limited | 2.150 | 2.000 | 2.000 | 110,000 | -0.150 | | 6.98 | |
| OLBP | ETFS Oil Securities Ld | 2,310 | 2,252 | 2,252 | 2,175 | -44 | | 1.91 | |
| OLWP | ETFS Oil Securities Ld | 1,500 | 1,455 | 1,455 | 5,500 | -31 | | 2.09 | |
| OLY3 | Lyxor International Asset Management | 215.0 | 215.0 | 215.0 | 344 | 2.1 | | 1.00 | |
| OMG | Omg Plc | 112.9 | 110.5 | 112.0 | 37,119 | 0.0 | | 0.00 | |
| OMI | Orosur Mining Inc | 3.075 | 2.935 | 3.075 | 19,036 | 0.000 | | 0.00 | |
| OMIP | One Media Ip Group Plc | 5.700 | 5.300 | 5.500 | 90,000 | 0.000 | | 0.00 | |
| OMU | Old Mutual Ltd | 97.78 | 95.36 | 95.70 | 897,071 | 0.02 | | 0.02 | |
| OMXS | Ishares IV Plc | 448.2 | 445.1 | 445.9 | 21,283 | 4.5 | | 1.02 | |
| ONC | Oncimmune Holdings Plc | 37.50 | 37.30 | 37.50 | 5,328 | 0.00 | | 0.00 | |
| OOA | Octopus Aim Vct Plc | 97.50 | 96.80 | 97.50 | 34,949 | 0.00 | | 0.00 | |
| OOUT | Ocean Outdoor Limited | 7.500 | 7.475 | 7.475 | 12,731 | 0.000 | | 0.00 | |
| OPEN | Ishares IV Plc | 5.638 | 5.605 | 5.605 | 2,077 | -0.029 | | 0.51 | |
| OPG | Opg Power Ventures Plc | 16.02 | 15.78 | 16.00 | 32,837 | 0.00 | | 0.00 | |
| OPM | 1Pm Plc | 32.78 | 32.19 | 32.50 | 236,668 | -0.25 | | 0.76 | |
| OPP | Origo Partners Plc | 0.1750 | 0.1502 | 0.1750 | 200,000 | 0.0000 | | 0.00 | |
| OPPP | Origo Partners Plc | 0.0350 | 0.0200 | 0.0350 | 73,010 | 0.0000 | | 0.00 | |
| OPTI | Optibiotix Health Plc | 56.40 | 54.45 | 55.00 | 40,726 | 0.00 | | 0.00 | |
| ORCH | Orchard Funding Group Pl | 80.00 | 74.87 | 80.00 | 3,000 | 0.00 | | 0.00 | |
| ORCP | Oracle Coalfields Plc | 0.9249 | 0.8250 | 0.8500 | 31,251,478 | -0.0250 | | 2.86 | |
| ORIT | Octopus Renewables Infrastructure Trust | 110.6 | 109.2 | 110.2 | 3,102,657 | 1.0 | | 0.92 | |
| ORM | Ormonde Mining Plc | 0.8400 | 0.7060 | 0.8000 | 15,847,381 | 0.0750 | | 10.34 | |
| ORPH | Open Orphan Plc | 6.600 | 6.450 | 6.450 | 1,412,431 | -0.100 | | 1.53 | |
| ORR | Oriole Resources Plc | 0.4875 | 0.4670 | 0.4800 | 3,933,563 | 0.0000 | | 0.00 | |
| OSB | Onesavings Bank Plc | 428.0 | 410.2 | 420.4 | 936,395 | 11.0 | | 2.69 | |
| OSB1 | ETFS Oil Securities Limi | 50.85 | 50.27 | 50.27 | 242 | -1.00 | | 1.95 | |
| OSEC | Octopus Second Aim Vct Plc | 73.50 | 72.80 | 73.50 | 17,579 | 0.50 | | 0.68 | |
| OSI | Osirium Technologies Plc | 26.00 | 24.95 | 26.00 | 55,000 | 0.00 | | 0.00 | |
| OSW1 | ETFS Oil Securities Limi | 51.27 | 47.10 | 47.10 | 172 | -3.99 | | 7.80 | |
| OTB | On The Beach Group Plc | 409.0 | 395.4 | 400.4 | 811,585 | 1.0 | | 0.25 | |
| OTMP | Onthemarket Plc | 80.00 | 72.00 | 76.50 | 21,250 | 5.00 | | 6.99 | |
| OTT | Oxford Technology 3 Venture Capital Trus | 48.50 | 39.64 | 48.50 | 2,000 | 0.00 | | 0.00 | |
| OTV2 | Octopus Titan Vct Plc | 86.50 | 85.50 | 86.50 | 15,976 | 0.00 | | 0.00 | |
| OVB | Ovoca Bio Plc | 10.69 | 10.20 | 10.35 | 70,000 | -0.15 | | 1.43 | |
| OVZC | ETFS Metal Securities Limited | 15.23 | 15.23 | 15.23 | 20,000 | 2.41 | | 18.76 | |
| OWLU | Ossiam Irl Icav | 118.3 | 115.1 | 118.3 | 300 | 3.4 | | 2.98 | |
| OXA1 | DB Etc Plc | 103.3 | 103.3 | 103.3 | 297 | -2.0 | | 1.86 | |
| OXB | Oxford Biomedica Plc | 670.0 | 647.5 | 655.0 | 44,284 | -8.0 | | 1.21 | |
| OXDX | DB X-Trackers | 131.0 | 130.8 | 131.0 | 410 | 1.6 | | 1.27 | |
| OXF | Oxford Technology 4 Venture Capital Trus | 26.50 | 21.00 | 26.50 | 2,500 | 0.00 | | 0.00 | |
| OXH | Oxford Technology 2 Venture Capital Trus | 25.00 | 15.10 | 25.00 | 10,500 | 0.00 | | 0.00 | |
| OXIG | Oxford Instruments Plc | 1,568 | 1,502 | 1,560 | 203,659 | 20 | | 1.30 | |
| OXT | Oxford Technology Venture Capital Trust | 33.00 | 23.50 | 33.00 | 5,000 | 0.00 | | 0.00 | |