Markets update at midafternoon

On the markets at midafternoon (ET):In Toronto, the S&P/TSX composite index was up 45.68 points to 15,999.19.The Dow Jones industrial average was down 70.29 points to 23,363.90.The Standard & Poor’s 500 index was down 12.23 points to 2,572.67.The Nasdaq composite index was up 139.90 points to 6,689.03.The Canadian dollar was trading at 77.92 cents US, up from Friday’s average price of 77.68 cents US.