| OAP3 | Octopus Apollo Vct Plc | 46.10 | 46.10 | 46.10 | 0 | 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 | 0.1200 | 0.1000 | 0.1100 | 74.59M | 0.0000 | | 0.00 | |
| OBI | Ondine Biomedical Inc | 10.50 | 10.00 | 10.25 | 220.8K | 0.00 | | 0.00 | |
| OCDO | Ocado Group Plc | 347.0 | 326.2 | 329.0 | 2.38M | -13.2 | | 3.84 | |
| OCI | Oakley Capital Investments Limited | 518.0 | 506.6 | 512.0 | 92.8K | 0.0 | | 0.00 | |
| OCTF | First Trust Global Funds Icav | 2,275 | 2,275 | 2,275 | 0 | -9 | | 0.40 | |
| OE08 | Bank Of Montreal | 100.4 | 100.4 | 100.4 | 1.0M | 0.0 | | 0.00 | |
| OE61 | The Kingdom Of Morocco | 101.7 | 101.7 | 101.7 | 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 | 334.8 | 332.6 | 334.8 | 100 | -1.1 | | 0.33 | |
| OGLD | Deutsche Boerse Commodities Gmbh | 118.4 | 117.0 | 118.4 | 1.0K | 0.0 | | 0.03 | |
| OGN | Origin Enterprises Plc | 335.0 | 335.0 | 335.0 | 0 | 0.0 | | 0.00 | |
| OGOL | Global X Metal Securities | 56.35 | 56.35 | 56.35 | 2.1K | 0.00 | | 0.00 | |
| OGZU | Wisdomtree Physical Swiss Gold | 352.0 | 345.7 | 352.0 | 100 | 0.3 | | 0.09 | |
| OHGR | One Health Group Plc | 292.5 | 290.9 | 292.5 | 1.0K | 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 | 99.85 | 99.85 | 99.85 | 0 | -0.26 | | 0.26 | |
| OIG | Oryx International Growth Fund Ltd | 1,360 | 1,334 | 1,350 | 6.7K | -11 | | 0.79 | |
| OIGB | Vaneck Oil Services Ucits ETF | 24.12 | 22.43 | 22.47 | 13.5K | -1.40 | | 5.85 | |
| 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 | 32.19 | 30.00 | 30.05 | 2.6K | -1.85 | | 5.80 | |
| OIL | Onyx Spot Return Crude Oil | 319.6 | 314.9 | 314.9 | 100 | 7.0 | | 2.28 | |
| OIL1 | Onyx Etc Securities Public Limited | 238.0 | 235.6 | 235.6 | 100 | 5.4 | | 2.36 | |
| OIL2 | Wisdomtree WTI Crude Oil 2X Daily Lev | 2,418 | 2,360 | 2,360 | 5.5K | 14 | | 0.61 | |
| OIL3 | UBS Etc [Cmci WTI 3M] USD | 172.4 | 172.4 | 172.4 | 0 | 1.6 | | 0.92 | |
| OILG | UBS Etc [Cmci Wti] GBP | 13,165 | 13,165 | 13,165 | 0 | 48 | | 0.36 | |
| OILP | GraniteShares 4X Long Crude Oil Etp | 2,361 | 2,361 | 2,361 | 0 | 0 | | 0.00 | |
| OILU | UBS Etc [Ubs BBG CMCI WTI Crude Idx] USD | 216.0 | 216.0 | 216.0 | 0 | 0.8 | | 0.37 | |
| OIP9 | Shell International Finance B.V | 97.00 | 97.00 | 97.00 | 0 | 0.00 | | 0.00 | |
| OIT | Odyssean Investment Trust Plc | 241.0 | 236.1 | 239.0 | 154.6K | -1.0 | | 0.42 | |
| OKL3 | Ls 3X Long Oklo Etp | 0.1750 | 0.1700 | 0.1750 | 21.0K | -0.0270 | | 13.37 | |
| OKP | Okopa Plc | 1.850 | 1.750 | 1.850 | 198.0K | 0.000 | | 0.00 | |
| OM9S | Yorkshire Water Finance PLC | 78.56 | 78.56 | 78.56 | 0 | 0.00 | | 0.00 | |
| OMG | Oxford Metrics Plc | 35.12 | 33.70 | 34.40 | 1.11M | -0.30 | | 0.86 | |
| OMI | Orosur Mining Inc | 13.50 | 12.68 | 12.75 | 1.58M | -1.25 | | 8.93 | |
| OMIP | One Media Ip Group Plc | 4.550 | 4.550 | 4.550 | 0 | -0.150 | | 3.19 | |
| OMU | Old Mutual Limited | 63.60 | 63.00 | 63.60 | 97.1K | -0.40 | | 0.63 | |
| OMXS | Ishares Omx Stockholm Capped Ucits ETF | 815.8 | 801.5 | 801.5 | 6.1K | -19.5 | | 2.38 | |
| ONDO | Ondo Insurtech Plc | 7.400 | 7.121 | 7.200 | 414.4K | -0.112 | | 1.53 | |
| ONT | Oxford Nanopore Technologies Plc | 220.0 | 211.0 | 211.4 | 1.15M | 2.7 | | 1.32 | |
| ONWD | Onward Opportunities Limited | 176.0 | 172.0 | 172.5 | 55.1K | -1.7 | | 0.98 | |
| OOA | Octopus Aim Vct Plc | 38.00 | 38.00 | 38.00 | 375.8K | 0.00 | | 0.00 | |
| OPEN | Ish Incl / Diversity ETF | 12.47 | 12.45 | 12.45 | 5.1K | -0.03 | | 0.25 | |
| OPT | Optima Health Plc | 245.0 | 242.0 | 243.5 | 33.9K | 1.5 | | 0.62 | |
| OPTI | Optibiotix Health Plc | 5.800 | 5.650 | 5.650 | 230 | 0.135 | | 2.45 | |
| OQ12 | Standard Chartered PLC | 88.94 | 88.94 | 88.94 | 0 | 0.00 | | 0.00 | |
| ORC1 | Orchard Bond Finance PLC | 95.23 | 95.23 | 96.73 | 0 | 0.00 | | 0.00 | |
| ORC3 | Ls 3X Long Oracle [Orcl] Etp | 2.469 | 2.383 | 2.428 | 74.5K | -0.237 | | 8.89 | |
| ORCA | Orcadian Energy Plc | 16.00 | 15.00 | 15.50 | 78.8K | -0.50 | | 3.13 | |
| ORCH | Orchard Funding Group Plc | 68.00 | 65.22 | 67.00 | 33.1K | 0.45 | | 0.67 | |
| ORCP | Oracle Power Plc | 0.0320 | 0.0250 | 0.0290 | 62.09M | -0.0030 | | 9.38 | |
| ORCY | Leverage Shares Public Limited Company | 5.033 | 5.033 | 5.033 | 0 | -0.240 | | 4.55 | |
| ORIT | Octopus Renewables Infrastructure Trust | 60.20 | 59.00 | 59.50 | 2.55M | -0.40 | | 0.67 | |
| ORNT | Orient Telecoms Plc | 4.500 | 4.500 | 4.500 | 0 | 0.000 | | 0.00 | |
| ORR | Oriole Resources Plc | 0.2700 | 0.2580 | 0.2580 | 7.46M | -0.0120 | | 4.44 | |
| OS73 | Toyota Finance Australia Limited | 96.17 | 96.17 | 96.17 | 0 | 0.00 | | 0.00 | |
| OSB | Osb Group Plc | 486.8 | 475.0 | 480.0 | 2.06M | -1.0 | | 0.21 | |
| OSEC | Octopus Aim Vct 2 Plc | 30.40 | 30.40 | 30.40 | 266.1K | 0.00 | | 0.00 | |
| OSX5 | Invesco Markets PLC | 60.13 | 59.57 | 60.13 | 0 | 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 | 19.5K | 0.000 | | 0.00 | |
| OT4 | Oxford Technology 2 Venture Capital | 8.500 | 6.500 | 8.500 | 40.8K | 0.000 | | 0.00 | |
| OTB | On The Beach Group Plc | 171.0 | 166.8 | 170.2 | 367.8K | -1.2 | | 0.70 | |
| OTES | Hellenic Telecommunications Organization | 10.92 | 10.92 | 10.92 | 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 | 19.50 | 19.50 | 19.50 | 0 | 9.50 | | 95.00 | |
| OVCT | Oberon Aim Vct Plc | 19.00 | 19.00 | 19.00 | 0 | 0.00 | | 0.00 | |
| OVZA | Wisdomtree Metal Securities Limited | 133.5 | 128.3 | 133.5 | 100 | 0.9 | | 0.66 | |
| OVZB | Wisdomtree Metal Securities Limited | 89.81 | 85.42 | 89.81 | 100 | 0.71 | | 0.80 | |
| OVZC | Wisdomtree Physical Silver | 46.81 | 44.71 | 46.81 | 6.0K | 0.18 | | 0.38 | |
| OXA1 | Physical Gold Euro Hdg Etc | 230.6 | 227.2 | 230.6 | 658 | -0.4 | | 0.17 | |
| OXA2 | Physical Silver Euro Hdg Etc | 290.0 | 290.0 | 290.0 | 728 | -0.2 | | 0.08 | |
| OXA5 | Physical Gold Etc 27/08/60 | 351.4 | 351.4 | 351.4 | 11.5K | -5.8 | | 1.62 | |
| OXA6 | Physical Silver Etc 27/08/60 | 491.4 | 491.4 | 491.4 | 353 | -12.7 | | 2.53 | |
| OXB | Oxford Biomedica Plc | 533.0 | 511.0 | 511.0 | 255.7K | -16.0 | | 3.04 | |
| OXH | Oxford Technology 2 Venture Capital | 8.500 | 8.500 | 8.500 | 0 | -1.500 | | 15.00 | |
| OXIG | Oxford Instruments Plc | 2,766 | 2,558 | 2,558 | 876.5K | -86 | | 3.25 | |
| 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 | |