For the week of June 27, investors will continue to monitor Brexit developments, remarks from Federal Reserve Chair Janet Yellen and earnings from Nike(NKE) - Get Report . Stock market volatility is expected to remain high after Thursday's 'Brexit' referendum, which tanked global equities and pushed investors into safe haven assets. Investors also await commentary from global central bankers including Janet Yellen, along with Bank of England Governor Mark Carney and ECB President Mario Draghi, who are speaking at a conference in Portugal. As for earnings, on Tuesday, Carnival(CUK) - Get Report reports results before the markets open and Nike unveils quarterly earnings after the markets close. Wednesday, the markets await earnings from General Mills(GIS) - Get Report and Monsanto (MON) before the opening bell. Thursday, the earnings calendar includes ConAgra Foods(CAG) - Get Report , Constellation Brands(STZ) - Get Report and Darden Restaurants(DRI) - Get Report before the markets open. TheStreet's Scott Gamm reports from Wall Street.