Warren Buffett still lives in the house he bought 66 years ago. Walmart founder Sam Walton drove a pickup truck instead of an expensive luxury car. founder Azim Premji often flies in economy class.

Not every super-wealthy person foregoes spending lavishly. However, many of the richest individuals on the planet like to get a good value for their money. This sometimes shows up in their investing activity. Billionaires are buying these three undervalued stocks. Should you?

David Tepper's net worth is $20.6 billion. The hedge fund he founded in 1993, Appaloosa Management, now primarily manages Tepper's own money. Tepper and Appaloosa have bet heavily on one undervalued stock -- Alibaba Group Holding (NYSE: BABA).

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Source Fool.com