Natwest shares surge on surprise first-half earnings beat
Margin falls less than fearedBank buys Metro mortgage bookFull-year forecasts increasedAfter seeing shares in high-street rival Lloyds Banking Group (LLOY) sag yesterday on mixed results, investors in NatWest Group (NWG) had low expectations coming into today's first-half update so the strong performance came as a pleasant surprise.The shares, which had already gained more than 50% this year, powe