By Tom Taulli, InvestorPlace Writer
Yet as we've seen this year, these types of whiz-bang companies can be extremely risky. Just look at the post-IPO plunges by Pandora (NYSE:P) and LinkedIn (NYSE:LNKD). Even the profitable Zynga (NASDAQ:ZNGA) saw its stock price fall 10% in its first two days of trading.
>>Related: Zynga IPO gets off to a rough startSome of the biggest gains by recent IPOs can be found in mundane industries. This has been the case with companies like Starbucks (NASDAQ:SBUX) and Wal-Mart (NYSE:WMT), both of which found ways to innovate long-standing markets. Are there any IPOs in 2011 that might be "under-the-radar" opportunities? Here are some of my picks:
Mattress FirmAs the name implies, Mattress Firm (NASDAQ:MFRM) is a mattress retailer. This is a prosaic industry, but the margins are high and there is no national operator. Mattress Firm thinks it can be that dominant national force. Already, the company has 757 stores across 25 states. Mattress Firm has succeeded on the strength of its own innovations. For example, it has a color system for selecting a mattress -- a customer will try out various options that correspond with individual colors. From there, it is easy to shop for the right design. >>Related: LinkedIn gets a new rival Mattress Firm also focuses on achieving the top market share in its geographic locations. This helps build its brand, which often is at a relatively low cost. There also are benefits in shipping logistics. Mattress Firm's growth has been outstanding, with the company posting 24 consecutive months of positive comparable-store sales growth. For the first half of this year, revenue spiked 41% to $331.8 million and net income was $4.7 million.
RPXPatents have become a critical part of global competitiveness, particularly in industries like smartphones and health care. A big problem is that litigation can be extremely risky and expensive. But RPX (NASDAQ:RPXC) has a solution. The company buys patents, then sells subscriptions to them to guarantee there will be no litigation over the intellectual property. The network of members include biggies like Cisco (NASDAQ:CSCO), Google (NASDAQ:GOOG), Nokia (NYSE:NOK) and Verizon (NYSE:VZ). >>Related: Tablet casualties, survivors for 2012
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