London stocks are firming despite notable spikes in the value of sterling against both the dollar and euro, and as investors generally welcomed a string of off-diary corporate news from mid-cap and AIM-quoted companies. A short time after the opening bell, the FTSE 100 was up 57.48 points, or 0.77%, to 7521.02, while the FTSE 250 was up 58.17, or 0.29%, to 19,874.6. Shares in Europe were also gaining, following on from a broadly positive Wall St on Friday and Asia gains this morning. Crude prices were down, as were those for gold and silver. Industrial-favourite copper was rising. This benefited miners with Anglo American (AAL) up 1.54% to 982.15p and Antofagasta (ANTO) adding 1.54% to 792p. Also up were Rio Tinto (RIO) and Glencore (GLEN). Gold-sensitive miners Randgold (RRS), down 0.77% to 7070p, and Fresnillo (FRES), down 0.13% to 1545p, were notable among the 12 blue chips falling. Oilies were gaining. BP (BP.) added 1.07% to 471.65p, while Shell (RDSA) improved 1.05% to 2137.25p. Supermarkets were appreciating, too. M&S (MKS) added 1.8% to 351.4p, while Morrison (MRW) rose 1.15% to 245.4p and Sainsbury (SBRY) gained 1.09% to 255.05p. Banks, insurers, consumer goods, property and utilities all figured among the long list of blue-chip winners. BIGGER MOVERS Oilex (OEX) gained 22.86% to 0.21p after announcing material progress in the resolution of the outstanding cash calls owing to the Cambay and Bhandut PSCs. It separately requested an immediate trading halt on its Australia-listed shares pending an announcement. Microsaic Systems (MSYS) down 20.95% to 2.08p, warned its H1 and FY 2017 revenue would be significantly lower than for 2016, but said lower overheads due to cost reduction plans implemented meant its FY pretax loss was seen broadly in line with 2016. TLA Worldwide (TLA) fell 17.02% to 19.5p after updating on its accounts, noting a total hit to headline EBITDA for FY 2016 of about $3.6m and provisions against trade and other receivables resulting in a one-off charge of about $3.2m. LONDON HIGHLIGHTS Mineral & Financial Investments (MAFL), up 15.7% to 17.5p, has issued drill results from its 49%-owned subsidiary, TH Crestgate GmbH, a private Swiss-based investment company. "This hole is a very positive and hugely encouraging first hole," it said. Mosman Oil & Gas Ltd (MSMN), down 11.11% to 1.4p, has raised £600,000 via a placing and subscription of 42.9m new shares at 1.4p each. Xtract Resources (XTR), up 10.7% to 0.02p, said wholly-owned Mozambique subsidiary Explorator Ltd has concluded a Mining Contractor agreement with Omnia Mining Ltd and Moz Gold Group Ltd for the exploitation of alluvial gold deposits at its Manica mining concession in Mozambique. Ortac Resources (OTC), up 7.69% to 3.5p, has provided an update on its investment in Casa Mining Ltd, a private company developing the Misisi gold project in the Democratic Republic of the Congo (DRC). InnovaDerma (IDP), up 7.69% to 385p, said it expected its FY revenue and profits to be well ahead of expectations. Sinclair Pharma (SPH), up 4.6% to 31.38p, has acquired the Refine Support System for a total consideration of up to $11.3m including regulatory and sales based milestones and royalties. ReNeuron (RENE), up 6.85% to 1.95p, said the US FDA has approved the cryopreserved formulation of its human retinal progenitor cell therapeutic candidate, and noted it had now started treating patients with this formulation in its ongoing US Phase I/II study clinical trial in retinitis pigmentosa patients. MTI Wireless Edge (MWE), up 4.12% to 25.25p, subsidiary Mottech Water Solutions has agreed to establish a JV company (Mottech China) with Omega Technologies (OTL). Mottech China would be 60% owned by MTI. Other stocks in the news included CareTech (CTH), Filtronic (FTC), Bonmarche (BON), Workspace (WKP), Avanti Communications (AVN), Custodian REIT (CREI), CyanConnode (CYAN), Premier Technical Services (PTSG), Atlantis Resources (ARL), Velocys (VLS), FastForward Innovations (FFWD), John Laing Environmental Assets (JLEN), Cairn Energy (CNE), Green & Smart (GSH), Integumen (SKIN) and Flowgroup (FLOW).