BUZZ-Goldcorp Inc: Stock biggest drag on Toronto exchange
** Gold producer's shares fall as much as 11 pct, the biggest drag on Canada's main stock index
** Stock falls to a six-year low of C$21.47, putting it on track for its worst day since December 2008
** Thursday's drop wipes out stock's 4.3 pct gain so far this year
** Q3 adjusted earnings falls well short of analysts' average estimate as production lags expectations
** Expects 2014 production to be at low end of its forecast due to lower-than-expected production at its El Sauzal mine and a work stoppage at its Los Filos underground mine in Q2
** Q3 average realized gold price fell to $1,266 an ounce from $1,339 an ounce
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