TSX falls, ending three-day streak, as banks weigh

A man walks past an old Toronto Stock Exchange (TSX) sign in Toronto, June 23, 2014. REUTERS/Mark Blinch

TORONTO (Reuters) - Canada's main stock index ended lower on Wednesday, snapping a three-day winning streak, as banks led a broad retreat offset by gains in oil and gas shares. The Toronto Stock Exchange's S&P/TSX composite index <.GSPTSE> unofficially closed down 48.19 points, or 0.32 percent, at 15,072.83. Nine of the 10 main sectors fell. (Reporting by Alastair Sharp. Editing by Andre Grenon)