The stock may have a lot more upside ahead.Netflix (NFLX 11.09%) stock has been an incredible performer, up more than 1,100% over the past 10 years. The stock's momentum has continued this year, with its shares up more than 50%, boosted by its most recent quarterly results.The company continues to be the big winner in the streaming space, and saw another nice jump in paid memberships in Q3. Meanwhile, it provided a solid outlook for next year.Let's take a closer look at Netflix's Q3 results and determine wh ...