(Reuters) - Bank shares are helping Wall Street on Monday after the previous week's fall, following a rescue deal for Portugal's largest listed lender and supported also by earnings from companies such as Berkshire Hathaway .
Berkshire shares are up 1 percent after its results posted Friday.
Michael Kors Holdings
Portugal's government agreed to rescue Banco Espirito Santo with a $6.6 billion bailout, saving the country's largest listed bank from failure through temporary loans.
(Reporting by David Gaffen)