As dollar catches fire, US companies break a sweat By: CNBC.com News January 11, 2015 at 14:00 PM EST The U.S. dollar's spike may hit trade and manufacturing. The greenback's strength is disruptive to U.S. exports and companies with big overseas sales. Read More >> Related Stocks: 3M Co Apple ConAgra Foods Costco Wholesale General Motors Genl Mills McDonald's Corp Nike Inc