Downtown office buildings Toronto

Canada’s main stock index dipped slightly despite the signing of a revised North American free trade deal.

The S&P/TSX composite index closed down 0.15 of a point at 16,950.70.

In New York, the Dow Jones industrial average was down 27.88 points at 27,881.72. The S&P 500 index was down 3.44 points at 3,132.52, while the Nasdaq composite was down 5.65 points at 8,616.18.

The Canadian dollar traded for US75.57¢ compared with an average of US75.56¢ on Monday.

The January crude contract was up US22¢ at US$59.24 per barrel and the January natural gas contract was up US3.2¢ at US$2.26 per mmBTU.

The February gold contract was up US$3.20 at US$1,468.10 an ounce and the March copper contract was up 0.7 of a cent at US$2.77 a pound.