| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OAP3 | Octopus Apollo Vct Plc | 48.00 | 45.00 | 48.00 | 100 | 1.50 |  | 3.23 |   |
| OAUE | | 42.76 | 42.76 | 42.76 | 247 | 0.00 |  | 0.00 | |
| OBD | Oxford Biodynamics Plc | 0.6000 | 0.5560 | 0.5770 | 22,927,195 | -0.0230 |  | 3.83 | |
| OBI | | 13.50 | 12.59 | 12.59 | 106,277 | -0.67 | | 5.02 | |
| OC16 | | 0.0000 | 0.0000 | 0.0000 | 0 | 0.0000 | | NaN | |
| OCDO | Ocado Group Plc | 330.7 | 311.1 | 330.7 | 2,356,883 | 14.8 | | 4.69 | |
| OCI | Oakley Capital Investments Limited | 558.0 | 546.0 | 552.0 | 152,152 | 0.0 | | 0.00 | |
| OCN | Ocean Wilsons [Holdings] Ld | 1,180 | 1,140 | 1,140 | 67,970 | -45 | | 3.80 | |
| OE08 | | 100.4 | 100.4 | 100.4 | 1,000,000 | 0.0 | | 0.00 | |
| OE61 | | 105.0 | 105.0 | 105.0 | 900,000 | 0.0 | | 0.00 | |
| OFG | | 84.50 | 84.50 | 84.50 | 0 | 0.00 | | 0.00 | |
| OGDC | Oil and Gas Development | 8.200 | 8.000 | 8.200 | 27,205 | 1.200 | | 17.14 | |
| OGDC | Oil and Gas Development | 8.200 | 8.000 | 8.200 | 27,204 | 1.200 | | 17.14 | |
| OGG9 | | 264.4 | 264.3 | 264.4 | 100 | 3.0 | | 1.14 | |
| OGLD | Deutsche Boerse Commodities Gmbh | 93.26 | 92.50 | 93.25 | 388 | 0.56 | | 0.60 | |
| OGN | Origin Enterprises Plc | 3.710 | 3.710 | 3.710 | 0 | 0.000 | | 0.00 | |
| OGOL | | 47.61 | 47.61 | 47.61 | 30,000 | 8.41 | | 21.44 | |
| OGZU | ETFS Metal Securities Limited | 277.5 | 275.6 | 277.5 | 100 | 1.6 | | 0.57 | |
| OHGR | One Health Group PLC | 247.0 | 245.0 | 247.0 | 6,007 | 3.0 | | 1.22 | |
| OHT | Orad Hi-tec Systems Ld Ord Ils 0.01 | 1.2000 | 0.8000 | 1.0000 | 69,277 | 0.0000 | | 0.00 | |
| OI20 | | 104.2 | 104.2 | 104.2 | 932,000 | 0.0 | | 0.00 | |
| OIG | Oryx International Growth Fund Ltd | 1,370 | 1,322 | 1,327 | 57,532 | -16 | | 1.16 | |
| OIGB | | 14.40 | 13.81 | 13.99 | 1,897 | -0.62 | | 4.25 | |
| OIH | Orascom Investment Holding S.A.E | 0.0150 | 0.0140 | 0.0140 | 1,800 | 0.0000 | | 0.00 | |
| OIHV | | 18.78 | 18.67 | 18.67 | 100 | -0.66 | | 3.39 | |
| OIL2 | | 880.0 | 858.5 | 858.5 | 11,756 | -6.0 | | 0.69 | |
| OIL3 | UBS Ag | 92.05 | 92.05 | 92.05 | 0 | -1.20 | | 1.29 | |
| OILG | UBS Ag | 8,223 | 8,223 | 8,223 | 0 | -110 | | 1.32 | |
| OILU | UBS Ag | 134.6 | 134.6 | 134.6 | 0 | -1.8 | | 1.30 | |
| OIP9 | | 97.87 | 97.87 | 97.87 | 300,000 | 0.00 | | 0.00 | |
| OIT | Odyssean Investment Trust Plc | 160.1 | 157.9 | 160.0 | 58,244 | -0.5 | | 0.31 | |
| OM95 | | 0.0000 | 0.0000 | 0.0000 | 0 | 0.0000 | | NaN | |
| OM9S | | 69.60 | 69.60 | 69.60 | 100,000 | 0.00 | | 0.00 | |
| OMG | Omg Plc | 47.00 | 45.10 | 46.30 | 456,691 | 0.10 | | 0.22 | |
| OMI | Orosur Mining Inc | 11.40 | 10.50 | 10.80 | 1,199,833 | 0.18 | | 1.65 | |
| OMIP | One Media Ip Group Plc | 4.499 | 4.250 | 4.499 | 100 | 0.249 | | 5.86 | |
| OMU | Old Mutual Ltd | 52.40 | 51.20 | 51.20 | 34,758 | -1.60 | | 3.03 | |
| OMXS | Ishares IV Plc | 675.0 | 670.8 | 672.3 | 25,920 | -9.3 | | 1.36 | |
| ONDO | | 28.25 | 26.00 | 27.50 | 681,126 | 0.50 | | 1.85 | |
| ONT | Online Travel | 203.8 | 196.1 | 199.5 | 1,580,332 | -4.5 | | 2.21 | |
| ONWD | Onward Opportunities Ltd | 128.8 | 127.2 | 128.5 | 12,783 | -0.5 | | 0.39 | |
| OOA | Octopus Aim Vct Plc | 50.00 | 45.20 | 50.00 | 10,300 | 3.40 | | 7.30 | |
| OPEN | Ishares IV Plc | 9.143 | 9.089 | 9.132 | 283,910 | -0.078 | | 0.85 | |
| OPG | Opg Power Ventures Plc | 8.800 | 8.500 | 8.500 | 470,866 | -0.150 | | 1.73 | |
| OPT | Ocean Power Technologies Inc Com Shs | 208.0 | 204.0 | 206.0 | 1,037,696 | 0.0 | | 0.00 | |
| OPTI | Optibiotix Health Plc | 11.40 | 11.07 | 11.40 | 9,022 | 0.15 | | 1.33 | |
| OQ12 | | 87.00 | 87.00 | 87.00 | 4,701,000 | 0.00 | | 0.00 | |
| OQ64 | | 0.0000 | 0.0000 | 0.0000 | 0 | 0.0000 | | NaN | |
| ORC1 | | 99.3 | 99.3 | 101.5 | 6,600 | -0.3 | | 0.25 | |
| ORCA | Orca Interact | 10.50 | 9.75 | 10.50 | 12,000 | 0.75 | | 7.69 | |
| ORCH | Orchard Funding Group Pl | 63.00 | 60.25 | 62.65 | 40,166 | 0.65 | | 1.05 | |
| ORCP | Oracle Coalfields Plc | 0.0180 | 0.0160 | 0.0160 | 342,581,475 | -0.0010 | | 5.88 | |
| ORIT | Octopus Renewables Infrastructure Trust | 70.90 | 69.40 | 70.00 | 649,927 | -0.10 | | 0.14 | |
| ORNT | Orient Telecoms Plc | 3.500 | 3.500 | 3.500 | 0 | -0.500 | | 12.50 | |
| ORR | Oriole Resources Plc | 0.2130 | 0.2070 | 0.2130 | 7,118,014 | 0.0000 | | 0.00 | |
| OS73 | | 95.00 | 95.00 | 95.00 | 1,000,000 | 0.00 | | 0.00 | |
| OS78 | | 0.0000 | 0.0000 | 0.0000 | 0 | 0.0000 | | NaN | |
| OSB | Onesavings Bank Plc | 555.5 | 544.5 | 549.5 | 435,083 | -6.5 | | 1.17 | |
| OSEC | Octopus Second Aim Vct Plc | 36.60 | 36.60 | 36.60 | 0 | -0.40 | | 1.08 | |
| OSX5 | Source Markets Public Limited Company | 53.76 | 53.76 | 53.76 | 80 | 0.00 | | 0.00 | |
| OT06 | | 72.10 | 72.10 | 72.10 | 9,600 | 0.00 | | 0.00 | |
| OT1 | | 16.00 | 14.50 | 14.50 | 25,000 | 0.00 | | 0.00 | |
| OT3 | | 8.500 | 7.000 | 7.000 | 50,000 | 0.000 | | 0.00 | |
| OT4 | | 8.000 | 6.500 | 6.500 | 50,000 | 0.000 | | 0.00 | |
| OTB | On The Beach Group Plc | 275.0 | 260.1 | 260.6 | 507,504 | -9.4 | | 3.49 | |
| OTES | Hellenic Telecommunications Organization | 7.710 | 7.710 | 7.710 | 9,338 | 0.000 | | 0.00 | |
| OTPD | Otp Bank Plc | 17.00 | 17.00 | 17.00 | 0 | 0.00 | | 0.00 | |
| OTV2 | Octopus Titan Vct Plc | 31.50 | 31.50 | 31.50 | 61,607 | 0.00 | | 0.00 | |
| OUFU | Ossiam Irl Icav | 198.9 | 198.9 | 198.9 | 0 | -0.3 | | 0.16 | |
| OVB | Ovoca Bio Plc | 1.295 | 1.045 | 1.150 | 173,323 | 0.000 | | 0.00 | |
| OVCT | Octopus Vct Plc | 22.10 | 22.10 | 22.10 | 0 | 0.00 | | 0.00 | |
| OVZA | ETFS Metal Securities Limited | 103.6 | 101.1 | 102.3 | 137 | -1.1 | | 1.03 | |
| OVZB | ETFS Metal Securities Limited | 97.35 | 94.08 | 95.75 | 100 | -0.99 | | 1.02 | |
| OVZC | ETFS Metal Securities Limited | 29.39 | 29.15 | 29.22 | 173 | 0.00 | | 0.00 | |
| OW14 | | 0.0000 | 0.0000 | 0.0000 | 0 | 0.0000 | | NaN | |
| OXA1 | DB Etc Plc | 194.4 | 191.0 | 194.3 | 100 | 2.6 | | 1.37 | |
| OXA2 | DB Etc Plc | 197.2 | 194.6 | 197.2 | 377 | 2.2 | | 1.14 | |
| OXA5 | DB Etc Plc | 278.6 | 276.4 | 278.6 | 100 | 1.9 | | 0.67 | |
| OXA6 | DB Etc Plc | 300.3 | 299.4 | 299.5 | 100 | -10.2 | | 3.30 | |
| OXB | Oxford Biomedica Plc | 464.5 | 418.0 | 464.5 | 269,333 | 6.0 | | 1.31 | |
| OXH | Oxford Technology 2 Venture Capital Trus | 7.000 | 5.500 | 5.500 | 50,000 | 0.000 | | 0.00 | |
| OXH | Oxford Technology 2 Venture Capital Trus | 7.000 | 5.500 | 5.500 | 50,000 | 0.000 | | 0.00 | |
| OXIG | Oxford Instruments Plc | 1,826 | 1,780 | 1,788 | 97,722 | -28 | | 1.54 | |
| OZ76 | | 98.25 | 98.25 | 98.25 | 578,000 | 0.00 | | 0.00 | |