CANADA STOCKS-TSX opens lower on concerns about Portugal

TORONTO, July 10 (Reuters) - Canada's main stock index dropped on Thursday as worries about the financial woes of a major Portuguese bank rippled across global equity markets.

The Toronto Stock Exchange's S&P/TSX composite index was down 107.82 points, or 0.71 percent, at 15,107.37 shortly after the open.

(Reporting by John Tilak; Editing by Chizu Nomiyama)