TORONTO, Mar 10 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Rises 504.80 points, or 3.48 percent, to 15,019.04 at open.TORONTO, Mar 10 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes up 443.85 points, or 3.06 percent, at 14,958.09.