15 Biggest Mid-Day Gainers For Monday By: Benzinga via Benzinga August 08, 2016 at 12:43 PM EDT Mattress Firm Holding Corp (NASDAQ: MFRM) shares climbed 114.2 percent to $63.69 as Steinhoff International Holdings ... Read More >> Related Stocks: Bristow Group Inc California Resources Corp Cemtrex Inc Emerge Energy Services LP Horizon Therapeutics Image Sensing Syst Mei Pharma Inc Sharkninja Inc Sotheby's Holdings Vail Resorts Yingli Green Energy Holding Company