Shares in Standard Chartered were surging on Wednesday after analyst at both Barclays and Bernstein raised their rating on the banking stock.Barclays analysts, which lifted their stance on StanChart from 'equal weight' to 'overweight', said they expect the recent appointment of Bill Winters as chief executive officer (CEO) to "mark a turning point [...] and see plenty of scope for the business to be refocused with a material improvement in returns back towards those of Asian peers". Bernstein similarly welcomed the appointment of former JPMorgan banker Winters as a "positive catalyst" as it upgraded StanChart by two notches from 'underperform' to 'outperform'.Barclays said it sees "another three years of hard labour" at HSBC as it lowered its recommendation on the shares from 'overweight' to 'equal weight'."A combination of higher capital requirements, macro headwinds and the need for further significant restructuring lead us to downgrade our earnings expectations 12-16% and to cut our rating [...] with a reduced price target of 575p (from 685p)," Barclays said.The possible disposal of RSA's Latin America operation "could be a game changer" for the insurance group and could fetch a higher price than the £500m rumoured, according to Berenberg.The broker, which kept a 'hold' rating, said that the potential sale could "unlock" RSA's dividend story, allowing the group to lift its payout ratio sooner than expected.