Lightning Round: Jim Cramer Advises Viewers On Chegg, Opko Health And More By: Benzinga via Benzinga July 19, 2017 at 07:06 AM EDT Jim Cramer said on CNBC's "Mad Money Lightning Round" that Chegg Inc (NYSE: CHGG) isn't done going higher. He likes ... Read More >> Related Stocks: Apollo Asset Management Inc Applied Optoelect Chegg Inc McKesson Corp Opko Health Inc Signet Jewelers Ltd Supernus Pharm United Parcel Service