Markets update at midafternoon

On the markets at midafternoon (ET):In Toronto, the S&P/TSX composite index is down 8.96 points to 15,310.60.The Dow Jones industrial average gained 39.02 points to 21,433.78.The Standard & Poor’s 500 index added 3.88 points to 2,442.18.The Nasdaq composite index shed 3.73 points to 6,261.52.The Canadian dollar was trading at 75.50 cents US, up from Friday’s average price of 75.37 cents US.