US stocks ended mixed in whipsaw trading, with the Dow Jones Industrial Average edging higher to another record in its best week in five years, as investors speculate how Donald Trump's policies will affect the economy and interest rates. The spotlight is intensifying on Trump's policies as investors place bets on possible winners and losers. Banks have surged 11 percent in the five days on speculation that the president-elect and Republican-controlled Congress will roll back regulations. Trump's promise to revive the nation's infrastructure sent industrial shares up more than 7.5 percent. Investors are also considering what his presidency means for Federal Reserve policy and the trajectory of interest rates. Odds for a December increase in borrowing costs have risen to 84 percent from 78 percent a week ago.