Even though the stock is surging today, Chegg's share price is still down 68% this year.Chegg (CHGG 10.88%) stock is making big gains in Tuesday's trading. The company's share price was up 12.8% as of 11:30 a.m. ET, according to data from S&P Global Market Intelligence.Chegg is gaining ground today thanks to a research note published by Morgan Stanley analyst Josh Baer. In his write-up on the stock, Baer upgraded his rating on the education services company from underweight to equal weight. The new rating s ...