TORONTO, June 16 (Reuters) - Canada's main stock index fell on Friday, dragged lower by heavyweight financial stocks, while consumer staples stock including Loblaw Companies Ltd L.TO fell sharply following news that Amazon.com Inc AMZN.O is buying Whole Foods Markets Inc WFM.O .
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE fell 56.61 points, or 0.37 percent, to 15,103.81. Nine of the index's 10 main groups were in negative territory.