Amazon (AMZN) topped $100 billion in sales but still disappointed Wall Street analysts who had projected higher profit and revenue. Even with record sales, Amazon's profit margins are razor thin. The e-commerce company spent a lot of money offering free shipping as part of the prime service. The Bank of Japan shocked global markets by lowering interest rates below zero for the first time in the Central Bank's history. Japanese markets swung widely after the surprise announcement but eventually closed up 3%. The GOP candidates sparred in Iowa Thursday night without front runner Donald Trump. The candidates had tough exchanges on immigration during the debate. Trump boycotted the debate and held a rally and fundraiser for wounded veterans instead and said he raised $6 million dollars in 2 days for the charity. Economists expect the initial report on 4th quarter GDP to show growth of .8%. San Francisco Federal Reserve President John Williams participates in a panel on economic growth.