These 10 big-name stocks have doubled this year. Can they keep it up?

The S&P 500 index is so far having a fine year, up a bit more than 20%. But several big-company stocks in the index have doubled, or better, over that time. Among the best-performers are some of Amerca's most well-known companies.

Here's a look at 10 of those and their prospects of advancing further -- or sliding back into the large pack of equities that have had only modest advances during the current bull market (all prices are as of the close on Nov. 9).