TORONTO, Jul 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Rises 7.46 points, or 0.05 percent, to 16,178.52 at open.TORONTO, Jul 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes down 146.83 points, or 0.91 percent, at 16,024.23.