By John Spence
BOSTON (MarketWatch) -- Shares PMI Group Inc. (PMI 2.56, -0.96, -27.27%) were down 26% in premarket trading Friday after the company's quarterly loss narrowed from the year-ago period, but was bigger than Wall Street had expected. The mortgage insurer reported a second-quarter loss of $2.71 a share, while analysts had been looking for a loss of $1.27 a share, according to Thomson Reuters.
