Stocks (^DJI, ^GSPC, ^IXIC) opened strong but have pared gains. The health care (XLV) and materials (XLI) sectors are most in the green, while the utilities (XLU) and industrial (XLI) sectors are most in the red. To discuss the big stories of the day, Yahoo Finance’s Alexis Christoforous joined by Yahoo Finance Editor-in-Chief Andy Serwer and Melody Hahm. Alexis talks market action with Keith Bliss of Cuttone and Company. She also discusses trading stocks on social media with Sunayna Tuteja, director of emerging technologies and innovation at TD Ameritrade.