Investors looking for hidden gems should keep an eye on small-cap stocks because they're frequently overlooked by Wall Street. Many opportunities exist in this part of the market, but it is also a high-risk, high-reward environment due to the lack of reliable analyst price targets.

The downside that can come from buying these securities is precisely why we started StockStory - to isolate the long-term winners from the losers so you can invest with confidence. Keeping that in mind, here is one small-cap stock that could be the next 100 bagger and two best left ignored.

Two Small-Cap Stocks to Sell:

MarineMax (HZO)

Market Cap: $1.15 billion

Appropriately headquartered in Clearwater, Florida, MarineMax (NYSE:HZO) sells boats, yachts, and other marine products.

Why Do We Steer Clear of HZO?

1. Lagging same-store sales over the past two years suggest it might have to change its pricing and marketing strategy to stimulate demand

2. Performance over the past three years was negatively impacted by new share issuances as its earnings per share dropped by 54.7% annually, worse than its revenue

3. High net-debt-to-EBITDA ratio of 9× could force the company to raise capital on unfavorable terms if market conditions deteriorate

MarineMax's stock price of $52.13 implies a valuation ratio of 37.4x forward P/E. Read our free research report to see why you should think twice about including HZO in your portfolio, it's free .

AMN Healthcare Services (AMN)

Market Cap: $1.33 billion

With a network of thousands of healthcare professionals ranging from nurses to physicians to executives, AMN Healthcare (NYSE:AMN) provides healthcare workforce solutions including temporary staffing, permanent placement, and technology platforms for hospitals and healthcare facilities across the United States.

Why Are We Wary of AMN?

1. Declining travelers on assignment over the past two years indicate demand is soft and that the company may need to revise its strategy

2. Falling earnings per share over the last five years has some investors worried as stock prices ultimately follow EPS over the long term

3. Eroding returns on capital suggest its historical profit centers are aging

At $34.41 per share, AMN Healthcare Services trades at 40.8x forward P/E. Dive into our free research report to see why there are better opportunities than AMN .

One Small-Cap Stock to Buy:

SPX Technologies (SPXC)

Market Cap: $9.85 billion

With roots dating back to 1912 as the Piston Ring Company, SPX Technologies (NYSE:SPXC) supplies specialized infrastructure equipment for HVAC systems and detection and measurement applications across industrial, commercial, and utility markets.