Traders work on the floor of the New York Stock Exchange.Michael M. Santiago/Getty Images The small-cap sector of the stock market has been rising recently. While some experts see obstacles to further gains, BofA says a handful of small stocks are poised to pop. BofA says investors should watch these names if they're looking for small-caps that could soon rally. Is it time for investors to start looking to opportunity smaller, under-the-radar stocks? That's a question that many investors have bee ...