A man looks at a stock quotation board as passers-by walk past, outside a brokerage in Tokyo December 4, 2013. REUTERS/Toru Hanai/FilesAlmost 10 of every 11 earnings pre-announcements for the current earnings season from companies in the U.S. S&P 500 index have lowered estimates, Thomson Reuters data showed. DOLLAR/YEN BOUNCES BACK The dollar gained back half a percent against the yen on Tuesday, bouncing from a four-week low, but was a touch lower against the euro after two sessions which had called a halt to the U.S. currency's bullish start to the new year.