| OAP3 | Octopus Apollo Vct Plc | 46.10 | 44.60 | 46.10 | 3.3K | 0.00 | | 0.00 | |
| OAUE | UBS Etf (Ch) - Gold (Usd) A-Dis | 125.6 | 125.6 | 125.6 | 34 | 0.0 | | 0.00 | |
| OBD | Oxford Biodynamics Plc | 0.1100 | 0.1000 | 0.1050 | 16.11M | -0.0060 | | 5.41 | |
| OBI | Ondine Biomedical Inc. | 10.000 | 9.500 | 9.750 | 747.6K | 0.000 | | 0.00 | |
| OCDO | Ocado Group Plc | 287.4 | 276.6 | 283.8 | 4.01M | -2.8 | | 0.98 | |
| OCI | Oakley Capital Investments Limited | 514.8 | 500.0 | 500.0 | 211.3K | -14.0 | | 2.72 | |
| OCTF | First Trust Global Funds Public Limited | 2,296 | 2,296 | 2,296 | 0 | -1 | | 0.03 | |
| OE08 | Bank Of Montreal | 100.4 | 100.4 | 100.4 | 1.0M | 0.0 | | 0.00 | |
| OE61 | The Kingdom Of Morocco | 101.0 | 101.0 | 101.0 | 0 | 0.0 | | 0.00 | |
| OFG | Octopus Future Generations Vct Plc | 80.50 | 80.50 | 80.50 | 0 | 0.00 | | 0.00 | |
| OGDC | Oil and Gas Development Company Limited | 8.050 | 8.050 | 8.050 | 0 | 0.000 | | 0.00 | |
| OGG9 | Gold Bullion Securities | 336.9 | 336.2 | 336.9 | 100 | -6.1 | | 1.77 | |
| OGLD | Deutsche Boerse Commodities Gmbh | 120.8 | 120.8 | 120.8 | 100 | -0.9 | | 0.76 | |
| OGN | Origin Enterprises Plc | 340.0 | 340.0 | 340.0 | 0 | 0.0 | | 0.00 | |
| OGOL | Global X Metal Securities | 56.35 | 56.35 | 56.35 | 1 | 0.00 | | 0.00 | |
| OGZU | Wisdomtree Metal Securities Limited | 358.5 | 351.1 | 358.5 | 131 | 4.1 | | 1.15 | |
| OHGR | One Health Group Plc | 292.5 | 291.0 | 292.5 | 6.2K | 0.0 | | 0.00 | |
| OI20 | Kingdom Of Saudi Arabia (The) | 98.7 | 98.7 | 101.3 | 0 | 0.0 | | 0.00 | |
| OI69 | Natwest Markets PLC | 100.1 | 100.1 | 100.1 | 0 | 0.0 | | 0.00 | |
| OIG | Oryx International Growth Fund Ltd | 1,355 | 1,301 | 1,350 | 45.3K | 15 | | 1.12 | |
| OIGB | Vaneck Oil Services Ucits ETF | 23.97 | 23.51 | 23.79 | 8.8K | 0.33 | | 1.41 | |
| OIH | Orascom Investment Holding S.A.E | 0.0150 | 0.0140 | 0.0140 | 1.8K | 0.0000 | | 0.00 | |
| OIHV | Vaneck Oil Services Ucits ETF | 31.55 | 31.37 | 31.44 | 6.8K | 0.45 | | 1.45 | |
| OIL | Onyx Etc Securities Public Limited | 303.3 | 303.3 | 303.3 | 0 | 19.1 | | 6.71 | |
| OIL1 | Onyx Etc Securities Public Limited | 229.5 | 229.5 | 229.5 | 0 | 14.3 | | 6.65 | |
| OIL2 | Wisdomtree WTI Crude Oil 2X Daily Lev | 2,123 | 2,055 | 2,120 | 11.3K | 140 | | 7.04 | |
| OIL3 | UBS Etc [Cmci WTI 3M] USD | 162.9 | 162.9 | 162.9 | 0 | 5.3 | | 3.33 | |
| OILG | UBS Etc [Cmci Wti] GBP | 12,510 | 12,510 | 12,510 | 0 | 243 | | 1.98 | |
| OILU | UBS Etc [Ubs BBG CMCI WTI Crude Idx] USD | 205.1 | 205.1 | 205.1 | 0 | 4.0 | | 1.96 | |
| OIP9 | Shell International Finance B.V | 97.00 | 97.00 | 97.00 | 0 | 0.00 | | 0.00 | |
| OIT | Odyssean Investment Trust Plc | 240.0 | 236.9 | 237.0 | 260.8K | -1.0 | | 0.42 | |
| OKL3 | Ls 3X Long Oklo Etp | 0.4850 | 0.4150 | 0.4150 | 51.1K | -0.0640 | | 13.36 | |
| OM9S | Yorkshire Water Finance PLC | 78.56 | 78.56 | 78.56 | 0 | 0.00 | | 0.00 | |
| OMG | Oxford Metrics Plc | 36.60 | 34.90 | 34.90 | 82.0K | 0.00 | | 0.00 | |
| OMI | Orosur Mining Inc | 15.00 | 14.40 | 14.70 | 1.22M | 0.10 | | 0.68 | |
| OMIP | One Media Ip Group Plc | 4.700 | 4.400 | 4.550 | 5.0K | 0.000 | | 0.00 | |
| OMU | Old Mutual Limited | 60.20 | 57.80 | 59.20 | 145.2K | 0.00 | | 0.00 | |
| OMXS | Ishares Omx Stockholm Capped Ucits ETF | 816.5 | 809.0 | 811.1 | 1.7K | -4.8 | | 0.58 | |
| ONDO | Ondo Insurtech Plc | 8.500 | 7.700 | 7.700 | 795.6K | -0.300 | | 3.75 | |
| ONT | Oxford Nanopore Technologies Plc | 219.0 | 198.4 | 200.8 | 3.41M | -19.8 | | 8.98 | |
| ONWD | Onward Opportunities Limited | 173.5 | 171.2 | 173.5 | 32.9K | 2.0 | | 1.17 | |
| OOA | Octopus Aim Vct Plc | 38.00 | 38.00 | 38.00 | 0 | 0.00 | | 0.00 | |
| OPEN | Ish Re Incl / Diversity ETF | 12.28 | 12.21 | 12.21 | 1.6K | -0.11 | | 0.91 | |
| OPT | Optima Health Plc | 242.0 | 240.0 | 240.0 | 188.6K | 0.0 | | 0.00 | |
| OPTI | Optibiotix Health Plc | 6.000 | 5.800 | 5.900 | 193.5K | 0.000 | | 0.00 | |
| OQ12 | Standard Chartered PLC | 88.94 | 88.94 | 88.94 | 0 | 0.00 | | 0.00 | |
| ORC1 | Orchard Bond Finance PLC | 95.81 | 95.81 | 96.73 | 0 | 0.00 | | 0.00 | |
| ORC3 | Ls 3X Long Oracle [Orcl] Etp | 3.740 | 3.600 | 3.609 | 10.3K | -0.171 | | 4.52 | |
| ORCA | Orcadian Energy Plc | 14.50 | 14.50 | 14.50 | 0 | 0.00 | | 0.00 | |
| ORCH | Orchard Funding Group Plc | 61.00 | 60.00 | 60.50 | 6.3K | 0.00 | | 0.00 | |
| ORCP | Oracle Power Plc | 0.0400 | 0.0350 | 0.0380 | 42.72M | 0.0000 | | 0.00 | |
| ORCY | Leverage Shares Public Limited Company | 5.508 | 5.508 | 5.508 | 0 | -0.080 | | 1.43 | |
| ORIT | Octopus Renewables Infrastructure Trust | 61.90 | 60.20 | 60.80 | 1.04M | -0.40 | | 0.65 | |
| ORNT | Orient Telecoms Plc | 4.500 | 4.500 | 4.500 | 0 | 0.000 | | 0.00 | |
| ORR | Oriole Resources Plc | 0.2900 | 0.2650 | 0.2650 | 12.0M | -0.0150 | | 5.36 | |
| OS73 | Toyota Finance Australia Limited | 96.17 | 96.17 | 96.17 | 0 | 0.00 | | 0.00 | |
| OSB | Osb Group Plc | 487.8 | 472.0 | 473.6 | 1.01M | -11.8 | | 2.43 | |
| OSEC | Octopus Aim Vct 2 Plc | 30.40 | 30.40 | 30.40 | 0 | 0.00 | | 0.00 | |
| OSX5 | Invesco Markets PLC | 60.40 | 60.40 | 60.40 | 1 | 0.00 | | 0.00 | |
| OT06 | Derwent London PLC | 72.10 | 72.10 | 72.10 | 9.6K | 0.00 | | 0.00 | |
| OT1 | Oxford Technology 2 Venture Capital | 19.50 | 19.50 | 19.50 | 0 | 0.00 | | 0.00 | |
| OT3 | Oxford Technology 2 Venture Capital | 10.000 | 8.000 | 10.000 | 20.0K | 0.000 | | 0.00 | |
| OT4 | Oxford Technology 2 Venture Capital | 8.500 | 6.500 | 8.500 | 75.0K | 0.000 | | 0.00 | |
| OTB | On The Beach Group Plc | 178.4 | 173.0 | 174.8 | 553.1K | -1.6 | | 0.91 | |
| OTES | Hellenic Telecommunications Organization | 11.03 | 10.69 | 10.70 | 0 | 0.00 | | 0.00 | |
| OTPD | Gdr [Each Repr 1/2 Ord Huf100][Reg S] | 17.00 | 17.00 | 17.00 | 0 | 0.00 | | 0.00 | |
| OTV2 | Octopus Titan Vct Plc | 20.50 | 20.50 | 20.50 | 0 | 0.00 | | 0.00 | |
| OVCT | Oberon Aim Vct Plc | 19.00 | 19.00 | 19.00 | 0 | 0.00 | | 0.00 | |
| OVZA | Wisdomtree Metal Securities Limited | 139.1 | 132.3 | 139.1 | 100 | -1.0 | | 0.74 | |
| OVZB | Wisdomtree Metal Securities Limited | 92.69 | 90.87 | 90.87 | 287 | -0.61 | | 0.67 | |
| OVZC | Wisdomtree Metal Securities Limited | 50.72 | 47.56 | 50.72 | 6.3K | -1.40 | | 2.68 | |
| OXA1 | Physical Gold Euro Hdg Etc | 231.2 | 230.9 | 231.2 | 100 | 1.5 | | 0.66 | |
| OXA2 | Db Etc PLC | 311.6 | 311.6 | 311.6 | 3 | 0.0 | | 0.00 | |
| OXA5 | Physical Gold Etc 27/08/60 | 358.0 | 358.0 | 358.0 | 100 | 2.4 | | 0.69 | |
| OXA6 | Physical Silver Etc 27/08/60 | 506.7 | 506.7 | 506.7 | 100 | -24.0 | | 4.52 | |
| OXB | Oxford Biomedica Plc | 537.0 | 512.0 | 513.0 | 432.8K | -15.0 | | 2.84 | |
| OXH | Oxford Technology 2 Venture Capital | 8.500 | 8.500 | 8.500 | 0 | 0.000 | | 0.00 | |
| OXIG | Oxford Instruments Plc | 3,178 | 2,926 | 2,926 | 140.4K | -122 | | 4.00 | |
| OY69 | Province Of Saskatchewan | 98.47 | 98.47 | 98.47 | 0 | 0.00 | | 0.00 | |
| OZ76 | Nationwide Building Society | 98.25 | 98.25 | 98.25 | 578.0K | 0.00 | | 0.00 | |