jpmorgan chase  co boosted its outlook for the boon from higher interest rates after its purchase of first republic bank the biggest us bank raised its guidance for net interest income this year to 84 billion excluding its trading business up from a previous forecast of 81 billion the lender said several “sources of uncertainty remain” including the federal reserve’s plans and how consumers react to higher rates jpmorgan bought first republic bank earlier this month after it became the secondlargest bank failure in us history and the fourth regional bank collapse this year dimon the only major bank chief executive officer from the financial crisis still in command said last week that “we need to finish the bank crisis” and regulators should “not be surprised constantly” the biggest banks have been largely immune to the problems plaguing their smaller rivals with jpmorgan reporting a surprise jump in deposits in the first quarter as customers sought safety shares of the biggest us bank was up 38 this year through friday while the kbw regional banking index was down 28