BRITAIN&rsquo;S top share index hit its highest closing level in more than two weeks yesterday as the G20&rsquo;s pledge to keep stimulus in place bolstered investors&rsquo; risk appetite, with miners and oil stocks leading the charge.<br /><br />The FTSE 100 closed up 92.46 points, or 1.8 per cent, at 5,235.18, the highest close since 23 October, and notching up its biggest one-day percentage gain since 14 October.<br /><br />&ldquo;Wall Street is producing a great lead and we&rsquo;ve had a very strong message from central banks that rates are staying where they are for quite some time, and meanwhile the global economy is recovering,&rdquo; said Mike Lenhoff, a strategist at Brewin Dolphin.<br /><br />Miners added the most points to the index against a backdrop of firmer metals prices, with <strong>Kazakhmys, Vedanta Resources, Xstrata, Antofagasta</strong> and <strong>Rio Tinto</strong>&nbsp; adding between 4.3 and 6 per cent.<br /><br /><strong>Randgold Resources</strong> put on 4 per cent as gold hit a fresh lifetime high as the dollar retreated on expectations of continued ample money supply and low US interest rates after the Group of 20 (G20) meeting over the weekend.<br /><br />G20 finance ministers and central bankers pledged on Saturday to prepare strategies to end emergency support for their economies but to keep the aid flowing until recovery was assured.<br /><br />The news gave banks a shot in the arm, with the sector also getting a boost ahead of third-quarter trading statements from <strong>HSBC</strong> and <strong>Barclays</strong>, which rose 1.3 and 1.9 per cent, respectively.<br /><br /><strong>Lloyds Banking Group</strong> gained 0.5 per cent, <strong>Royal Bank of Scotland</strong> added 6.3 per cent and<strong> Standard Chartered</strong> was 0.8 per cent firmer.<br /><br />Energy stocks drew strength from a 3 per cent rise in crude prices <strong>BG Group, BP, Royal Dutch Shell </strong>and <strong>Tullow</strong> <strong>Oil</strong> added 0.8 to 2.8 per cent. <br /><br />&nbsp;Life insurers were also in demand, as takeover speculation swept through the sector after Europe&rsquo;s second-largest insurer <strong>AXA</strong> unveiled a planned $7bn buy-out of its Asian assets and the sale of its Australian assets to local rival <strong>AMP</strong>. <br /><br />The sector was also helped by <strong>ING</strong>, which raised its price targets on European insurers, and forecast-beating results from Germany&rsquo;s <strong>Allianz</strong>.<br /><br />Prudential was the biggest gainer in the sector.