BOSTON ( TheStreet) -- The Russell 2000 small-cap benchmark has rallied 8.5% in September. If the economy strengthens, small-cap stocks are likely to outperform large-caps.

Investors who are piling into bonds could miss out on major upside if fear subsides. Here are 10 small-cap stocks predicted to rise at least 52% in the next 12 months, based on analysts' median targets. They have market values between $500 million and $1.5 billion, and are ordered by expected return.

10. P.H. Glatfelter ( GLT) makes and sells specialty papers and fiber-based products. Its second-quarter profit plummeted 99% to $100,000, or break-even per share, beating expectations for a $500,000 loss. Revenue increased 30% to $365 million. The operating margin turned positive. Glatfelter's stock trades at a trailing earnings multiple of 5.5, a forward earnings multiple of 9, a book value multiple of 1.1 and a cash flow multiple of 2.8 -- 83%, 64%, 21% and 59% discounts to paper products industry averages. Three out of four analysts rate it "buy."

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