UPDATE 1-Bill Ackman says short-term money driving market volatility
October 06, 2015 at 17:38 PM EDT
NEW YORK, Oct 6 (Reuters) - William Ackman, head of hedge fund firm Pershing Square Capital Management, said on Tuesday that financial market volatility was being driven by short-term money without regard to long-term economic fundamentals and that Valeant Pharmaceuticals International Inc was the most undervalued stock among his top holdings.