Top 10 Biggest Stock Gainers Today By Percentage (%) The ten stocks listed below are today’s top performing stocks and biggest percentage gainers on the NYSE & NASDAQ. Brief Overview of Today's Top Stock Movers: SkyPeople Fruit Juice (SPU) took the number one spot on today’s list of the biggest stock gainers. The company’s stock price surged by 28.03% to end the day at $3.06 as 1,495,022 of the company's shares were bought and sold by investors.