CANADA STOCKS-TSX turns higher as National Bank, other financials gain

TORONTO, May 24 (Reuters) - Canada's main stock index turned positive in early Friday trade as fears that the U.S. Federal Reserve will roll back its stimulus program were offset by a rise in National Bank of Canada and other financial stocks. The Toronto Stock Exchange's S&P/TSX composite index was up 2.70 points, or 0.02 percent, at 12,660.79 in mid-morning trade.