Wall Street has issued downbeat forecasts for the stocks in this article. These predictions are rare - financial institutions typically hesitate to say bad things about a company because it can jeopardize their other revenue-generating business lines like M&A advisory.

Small-cap stocks in the Russell 2000 (^RUT) can be a goldmine for investors looking beyond the usual large-cap names. But with less stability and fewer resources than their bigger counterparts, these companies face steeper challenges in scaling their businesses.