Investing.com - Here are the top five things you need to know in financial markets on Wednesday, January 13: 1. China trade surplus widens as exports surprise to the upside The latest trade figures out of China eased some concerns over the health of the world's second-biggest economy. Chinese exports in yuan-denominated terms rose 2.3% from a year earlier in December, rebounding from a drop of 3.7% in November, while imports declined 4.0%, compared with a 5.6% decrease a month earlier.