Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga August 21, 2015 at 08:17 AM EDT Siliconware Precision Industries (ADR) (NASDAQ: SPIL) gained 25.68 percent to $6.51 in pre-market trading. Advanced Semiconductor ... Read More >> Related Stocks: Accuray Inc Footlocker Inc Salesforce