15 Biggest Mid-Day Gainers For Tuesday By: Benzinga via Benzinga August 23, 2016 at 12:35 PM EDT Astrotech Corp (NASDAQ: ASTC) shares climbed 23.2 percent to $1.84 as the company disclosed that its subsidiary 1st ... Read More >> Related Stocks: Amazon.com Approach Res. Inc Best Buy CF Industries Holdings Daktronics Inc Eagle Pharmaceuticals Hello Group Inc ADR Monsanto Co Nordson Corp Raven Industries Inc Shoe Carnival Inc Tableau Software Inc Cl A Toll Brothers Inc