| Code | Name | High | Low | Close | Volume | Change |
| OAH | Oak Holdings Ord 1p | 5.900 | 5.250 | 5.500 | 144,810 | 0.750 |  | 15.79 |
| OAP1 | OCTOPUS APOLLO VCT 1 PLC ORD GBP0.10 | 82.00 | 82.00 | 82.00 | 0 | 0.00 |  | 0.00 |
| OAP2 | OCTOPUS APOLLO VCT 2 PLC ORD GBP0.10 | 82.00 | 82.00 | 82.00 | 0 | 0.00 |  | 0.00 |
| OAP3 | OCTOPUS APOLLO VCT 3 PLC ORD GBP0.10 | 81.00 | 81.00 | 81.00 | 0 | 0.00 |  | 0.00 |
| OAP4 | OCTOPUS APOLLO VCT 4 PLC ORD GBP0.10 | 81.00 | 81.00 | 81.00 | 0 | 0.00 |  | 0.00 |
| OBP | Ondine Bio | 3.500 | 3.500 | 3.500 | 0 | 0.000 |  | 0.00 |
| OBT | OBTALA RESOURCES PLC ORD GBP0.01 | 31.00 | 29.15 | 30.00 | 461,564 | 0.50 |  | 1.69 |
| OCDO | OCADO GROUP PLC ORD GBP0.02(WI) | 157.0 | 149.5 | 157.0 | 3,768,463 | 7.5 |  | 5.02 |
| OCG | OXFORD CATALYSTS GROUP ord gbp0.01 | 75.00 | 70.06 | 75.00 | 6,283 | 0.00 |  | 0.00 |
| OCH | orchid developments group ord eur0.01 | 31.50 | 31.50 | 31.50 | 0 | 0.00 |  | 0.00 |
| OCL | OAKLEY CAPITAL INVESTMENTS LTD ORD | 117.0 | 113.5 | 117.0 | 2,088 | 2.0 |  | 1.74 |
| OCN | Ocean Wilson Hdg | 1,078 | 1,078 | 1,078 | 50 | 3 |  | 0.28 |
| OCP | ORCHID CHEMICAL & PHARMACEUTICAL GDR | 7.530 | 3.050 | 3.050 | 0 | 0.000 |  | 0.00 |
| OCPA | ORCHID CHEMICAL & PHARMACEUTICAL GDR | 7.000 | 7.000 | 7.000 | 0 | 0.000 |  | 0.00 |
| OCS | OSMOSIS FUNDS CLIMATE SOLUTIONS ETF | 0.9250 | 0.9180 | 0.9180 | 0 | 0.0010 |  | 0.11 |
| OCSP | OSMOSIS FUNDS CLIMATE SOLUTIONS ETF | 60.00 | 60.00 | 60.00 | 0 | 0.20 |  | 0.33 |
| ODX | QUINTESSENTIALLY ENGLISH ORD GBP0.01 | 16.25 | 14.63 | 14.63 | 16,970 | 0.87 |  | 5.61 |
| OEC1 | OCTOPUS ECLIPSE VCT PLC ORD GBP0.1 | 64.00 | 64.00 | 64.00 | 0 | 0.00 |  | 0.00 |
| OEC2 | OCTOPUS ECLIPSE VCT 2 PLC ORD GBP0.10 | 66.00 | 66.00 | 66.00 | 0 | 0.00 |  | 0.00 |
| OEC3 | OCTOPUS ECLIPSE VCT 3 PLC ORD GBP0.10 | 56.50 | 56.50 | 56.50 | 0 | 0.00 |  | 0.00 |
| OEC4 | OCTOPUS ECLIPSE VCT 4 PLC ORD GBP0.10 | 56.50 | 56.50 | 56.50 | 0 | 0.00 |  | 0.00 |
| OEX | oilex nl ord npv | 8.250 | 7.800 | 7.960 | 36,153 | 0.040 |  | 0.50 |
| OFF | OFFICE2OFFICE ORD GBP0.01 | 115.3 | 110.0 | 110.0 | 17,000 | 5.4 |  | 4.68 |
| OGDC | OIL & GAS DEVELOPMENT CO GDR EACH REPR | 16.75 | 16.75 | 16.75 | 102 | 0.00 |  | 0.00 |
| OGK2 | OGK 2 GDR EACH REPR 100 ORD `REGS` | 4.800 | 4.410 | 4.800 | 0 | 0.000 |  | 0.00 |
| OGN | ORIGIN ENTERPRISES PLC ORD EUR0.01 | 2.640 | 2.600 | 2.640 | 1,000 | 0.060 |  | 2.22 |
| OGZD | GAZPROM OAO ADS EACH REPR 4 ORD SHS | 21.51 | 21.01 | 21.18 | 9,924,832 | 0.02 |  | 0.09 |
| OHM | Offshore Hydrocarbon Mapping Ord 1p | 6.750 | 6.750 | 6.750 | 0 | 0.000 |  | 0.00 |
| OIG | Oryx Intl | 197.0 | 194.1 | 194.1 | 532 | 0.1 |  | 0.03 |
| OIH | OMEGA IURANCE HLDGS LTD COM STK USD0.10 | 92.52 | 85.00 | 92.52 | 13,557 | 0.52 |  | 0.57 |
| OILB | ETFS OIL SECURITIES LTD ETFS BRENT OIL | 42.79 | 41.93 | 41.93 | 38,309 | 0.05 |  | 0.12 |
| OILE | UBS AG LONDON BRANCH ETC NTS(UBS BBG | 1,105 | 1,105 | 1,105 | 0 | 3 |  | 0.27 |
| OILL | UBS AG LONDON BRANCH ETC NTS(UBS BBG | 1,210 | 1,144 | 1,144 | 0 | 13 |  | 1.10 |
| OILS | ETFS FUND COMPANY PLC DOW JONES STOXX | 1,364 | 1,364 | 1,364 | 1,002 | 9 |  | 0.66 |
| OILW | ETFS OIL SECURITIES LTD ETFS WTI OIL | 47.81 | 46.98 | 46.98 | 20,530 | 0.10 |  | 0.21 |
| OLBP | ETFS OIL SECURITIES LTD ETFS BRENT OIL | 2,750 | 2,750 | 2,750 | 2,400 | 26 |  | 0.95 |
| OLWP | ETFS OIL SECURITIES LTD ETFS WTI OIL | 3,070 | 3,070 | 3,070 | 6,400 | 77 |  | 2.57 |
| OMG | OMG Ltd | 25.00 | 24.00 | 25.00 | 26,000 | 1.50 |  | 6.38 |
| OMI | OROSUR MINING INC COM NPV | 24.50 | 22.00 | 24.50 | 112,545 | 3.25 |  | 15.29 |
| OML | Old Mutual | 138.3 | 133.0 | 137.5 | 16,882,876 | 3.4 |  | 2.54 |
| ONG | OXFORD NUTRASCIENCE GROUP PLC ORD | 2.130 | 2.130 | 2.130 | 0 | 0.000 |  | 0.00 |
| ONL | On-line | 36.50 | 36.50 | 36.50 | 0 | 0.75 |  | 2.10 |
| OOA | CLOSE BROTHERS AIM VCT ORD GBP0.50(NEW) | 69.50 | 69.50 | 69.50 | 0 | 0.00 |  | 0.00 |
| OPE | OPTARE PLC ORD GBP0.01 | 4.975 | 4.775 | 4.775 | 75,951 | 0.185 |  | 4.03 |
| OPF | Off-Plan Fund | 45.50 | 45.50 | 45.50 | 0 | 0.00 |  | 0.00 |
| OPG | OPG POWER VENTURE PLC ORD GBP0.000147 | 70.04 | 70.00 | 70.00 | 332,348 | 0.50 |  | 0.71 |
| OPHX | OCTOPUS PHOENIX VCT PLC ORD GBP0.10 | 33.50 | 33.50 | 33.50 | 0 | 0.00 |  | 0.00 |
| OPM | 1PM PLC ORD GBP0.0006818 | 0.0430 | 0.0351 | 0.0355 | 2,385,039 | 0.0015 |  | 4.05 |
| OPP | ORIGO PARTNERS PLC ORD GBP0.0001 | 26.70 | 26.48 | 26.50 | 0 | 0.03 |  | 0.09 |
| OPT | Ocean Power Technologies Inc Com Shs | 327.5 | 305.6 | 305.6 | 2 | 44.4 |  | 12.68 |
| OPTS | OPTOS ORD GBP0.02 | 92.60 | 84.80 | 92.00 | 1,027,271 | 9.75 |  | 11.85 |
| ORA | ORA CAPITAL PARTNERS PLC ORD GBP0.01 | 77.70 | 74.25 | 74.25 | 0 | 2.00 |  | 2.62 |
| ORM | Ormonde Mining | 3.850 | 3.750 | 3.850 | 12,525 | 0.100 |  | 2.67 |
| ORSD | ORASCOM CONSTRUCTIONS INDUSTRY GDR EACH | 44.50 | 44.00 | 44.00 | 44,970 | 0.10 |  | 0.23 |
| ORT | Orientrose 2 Ord 1p | 15.00 | 15.00 | 15.00 | 0 | 0.00 |  | 0.00 |
| OSB1 | ETFS OIL SECURITIES LTD ETFS BRENT OIL | 71.94 | 71.38 | 71.94 | 0 | 0.43 |  | 0.59 |
| OSB3 | ETFS OIL SECURITIES LTD ETFS BRENT OIL | 83.90 | 81.00 | 83.90 | 0 | 0.46 |  | 0.55 |
| OSEC | OCTOPUS SECOND AIM VCT PLC(NEW) ORD | 55.50 | 55.50 | 55.50 | 0 | 0.00 |  | 0.00 |
| OSG | APPLIED OPTICAL TECHNOLOGIES GBP0.05 | 26.40 | 25.75 | 26.40 | 17,500 | 1.63 |  | 6.56 |
| OSU | ORSU METALS CORP COM NPV | 12.98 | 12.50 | 12.98 | 19 | 0.13 |  | 1.01 |
| OSW1 | ETFS OIL SECURITIES LTD ETFS WTI OIL 1YR | 74.09 | 70.94 | 74.09 | 0 | 0.29 |  | 0.39 |
| OSW2 | ETFS OIL SECURITIES LTD ETFS WTI OIL 2YR | 79.90 | 79.72 | 79.72 | 0 | 3.08 |  | 4.02 |
| OSW3 | ETFS OIL SECURITIES LTD ETFS WTI OIL 3YR | 82.71 | 80.10 | 82.71 | 0 | 0.12 |  | 0.14 |
| OTE | o twelve estates ord gbp0.01 | 10.50 | 10.25 | 10.48 | 155,024 | 0.03 |  | 0.24 |
| OTES | HELLENIC TELECOM.ORGANIZATION S.A. ADS | 3.530 | 3.500 | 3.530 | 0 | 0.000 |  | 0.00 |
| OTLD | ORASCOM TELECOM HLDGS S.A.E. GDR EACH | 4.800 | 4.770 | 4.790 | 266,967 | 0.020 |  | 0.42 |
| OTPD | OTP BANK GDR-EACH REPR 2 ORD HUF100(REG | 11.830 | 9.010 | 9.010 | 0 | 0.000 |  | 0.00 |
| OTV | OTIUM VENTURES PLC ORD GBP0.01 | 1.500 | 1.500 | 1.500 | 0 | 0.000 |  | 0.00 |
| OTV3 | OCTOPUS TITAN VCT 3 PLC ORD GBP0.10 | 85.00 | 85.00 | 85.00 | 0 | 0.00 |  | 0.00 |
| OVG | Ovoca Resources | 22.00 | 21.00 | 22.00 | 0 | 0.80 |  | 3.77 |
| OXA | OXFORD ADVANCED SURFACES GR PLC ORD | 14.50 | 13.00 | 14.50 | 0 | 0.00 |  | 0.00 |
| OXB | Oxford Biomedica | 10.000 | 9.500 | 9.900 | 161,058 | 0.000 |  | 0.00 |
| OXIG | Oxford Instruments | 355.4 | 353.9 | 355.4 | 3,117 | 9.6 |  | 2.62 |
| OXS | Oxus Mining Ord | 7.050 | 6.170 | 6.390 | 1,053,874 | 0.290 |  | 4.75 |