BALTIMORE ( Stockpickr) -- More than 150 companies came onto the scene the last year, including such big time names as SodaStream ( SODS), Tesla Motors ( TSLA), Motricity ( MOTR) and General Motors ( GM).The performance in some of these new issues has been pretty breathtaking, to say the least. SodaStream, for example, is up 53% since the company came public, while Motricity is up a gigantic 99% since entering the public market. Tesla Motors has more than doubled during its brief trading history, from its 52-week low of $14.98 to recent highs of around $36 a share. The stock has recently cooled off and is now changing hands around $23 a share. According to the Web site IPOScoop.com, the total return from all of the companies that came public in 2010 is an impressive 26.9%. This is a pretty solid performance when you consider that the IPOs for 2010 were spread across a variety of industries and sectors. Returns like what we saw last year are just the reason that market players should always be searching the IPO market for strong stocks that could continue to outperform. Related: 3 Stocks Poised to Break Out Instead of looking into the companies that are slated to come public in 2011, I would advise readers to look at the companies that have already come public and that are uptrending nicely. Companies that haven't come public yet have no trading history, for one thing, and it can be very hard to get a look at the financials of a firm that has yet to hit the public markets. Make no mistake about it: There will be plenty of great companies that IPO this year. Skype and Nielsen Holdings are two well-known firms that are slated to trade on Wall Street in 2011. But without any trading history or the ability to look at their financials, I would hold off and just be patient until those names hit the tape before considering them as investments. That said, if you can get some shares from your broker pre-IPO, then there's nothing wrong with taking a shot at a potential highflier with Skype or Nielsen. But for this article, I am going to focus on companies that have already come public and currently look attractive. Here's a look at a number of recent hot IPO stocks that could be gearing up for big returns in 2011.