TORONTO, Mar 4 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Rises 236.30 points, or 1.44 percent, to 16,659.92 at open.TORONTO, Mar 4 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Unofficially closes up 355.91 points, or 2.17 percent, at 16,779.53.