BUZZ-Gildan Activewear Inc: Forecasts Q1 loss
** Canadian apparel maker's U.S.-listed shares down 14.2 pct at $50 premarket
** Company forecasts Q1 loss due to price cuts in printwear business
** Gildan reports Q4 profit and sales below its forecast due to weaker-than-expected sales of branded apparel
** Up to Wednesday's close, stock had gained 9.3 pct this year
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