Every great stock began its journey when it was undervalued and overlooked. Nonetheless, a few savvy investors recognized their growth potential and invested in them when they were cheap. As a result, when these businesses reached their full potential, those early investors earned enormous profits. Here are two examples of stocks under $100 that do not appear to be particularly valuable at the moment, but could generate significant returns in the future. Etsy StockThe first on my list is Etsy (ETSY), a unique two-sided online marketplace that connects buyers and sellers. With its platform, the…