That's about the right level for GM stock right now, according to Bernstein analyst Daniel Roeska. In a new report, Roeska lowered his rating on the stock from the equivalent of a buy to a hold and reduced his firm's price target to $53 per share. The stock fell on that news, even with the shares hovering about 10% below the new price target.

If you look at the numbers, the good times have never been so good for General Motors (GM) . Shares of the country's largest automaker by sales are up 31% year to date and the stock has climbed nearly 45% from a year earlier.