BOSTON ( TheStreet) -- Stocks that double or triple over one year are usually best sold. Except when analysts predict that they'll keep rising. Here are 10 obscure small-cap stocks that just might do that. Below, they're ordered by their one-year gain, from big to biggest.

10. HeartWare ( HTWR) is a medical-device company, focusing on products for advanced heart failure. HeartWare's second-quarter loss widened to $10 million, but the per share loss narrowed to 73 cents due to dilution. Revenue more than tripled to $9.8 million. The gross margin climbed from 55% to 59%. HeartWare's stock sells for a book value multiple of 8 and a sales multiple of 25, substantial premiums to industry averages. Of analysts covering HeartWare, six rate it "buy" and four rate it "hold." A median target of $74.50 suggests a looming return of 7%.

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