The weekend is over and stocks are mixed. Most global stock markets opened lower on leftover selling from Friday but have stabilized. Japan's Nikkei, which suffered and 8% loss Friday, has been trading higher most of the night. U.S. stocks are looking at losses. Some analysts say the worst is not over with Brexit, as the British negotiate the best way to leave the European Union. Other analysts say Friday's sell-off was a knee jerk reaction that was overdone. Oil prices are edging higher but volatility is likely to remain over the near term, as the British pound fell further and sent the U.S. dollar soaring. A stronger greenback makes oil more expensive for buyers. Shareholders of Williams Companies (WMB) - Get Report vote today on its merger with Energy Transfer. Treasury Secretary Jacob Lew speaks today. Federal Reserve Chair Janet Yellen joins European Central Bank President Mario Draghi at a meeting.