Attention in the banking sector today is focused on Lloyds Banking Group's AGM, but Swiss bank UBS has been running the rule over HSBC and found cause to reiterate its recommendation to buy the shares.UBS reckons that losses from the bank's ill-advised Household acquisition will be lower than previously anticipated, while the situation on bad debts may not be as bad as feared.UBS has boosted its price target for HSBC from 625p to 675p.