stocks in canada were little changed in midday trading wednesday as sector performances were a mixed bag in the session the technology services sector posted the biggest declines while utilities retail trade and communications led the gainers cgi inc shares rose after it said firstquarter profit increased beating expectations and that its board approved sharebuyback program for up to 10 of its public float at midday canadas sptsx composite index was down almost 01 at 2130103 while the bluechip sptsx 60 was flat at 129462 cgi shares rose 25 to c11211 after it said earnings per share were c149 up from c132 a year earlier it also said it would buy back up to 187 million class a shares for cancellation as part of a renewal of its normal course issuer bid at tuesdays closing price of c10934 the buyback would be worth about c205 billion dye  durham ltd shares fell 74 to c3380 after the company reported a larger net loss than analysts expected in its second quarter and revenue growth also missed forecasts