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%.

9. Key Tronic ( KTCC) sells electronic-manufacturing services to technology companies. Fiscal fourth-quarter profit rose sevenfold to $2.3 million, or 22 cents a share, as revenue increased 36%. The operating margin rose from 0.7% to 4.9%. Key Tronic's stock sells for a trailing earnings multiple of 7.1, a book value multiple of 1 and a sales multiple of 0.3 -- 66%, 78% and 90% discounts to computer and peripheral peer averages. Of the stock's 15 largest holders, eight increased stakes in the latest quarter, five held steady and two lessened holdings.

8. Wave Systems ( WAVX) provides client and server software for hardware-based digital security. Its second-quarter loss widened to $970,000 from $340,000 a year earlier. But the per share loss remained steady at 1 cent. Revenue climbed 34% to $6.5 million. The operating margin fell further into negative territory. Wave Systems shares trade at a forward earnings multiple of 11 and a sales multiple of 8.2 -- 59% and 51% discounts to software industry averages. MDB Capital values the stock at $6, suggesting it will more than double in 12 months.

7. Industrial Services of America ( IDSA) engages in scrap-metal recycling and waste-management services. Second-quarter profit more than doubled to $2.4 million, or 36 cents a share, as revenue more than doubled to $93 million. The operating margin inched up from 4.4% to 4.5%. The company's stock sells for a trailing earnings multiple of 13, a forward earnings multiple of 8.2 and a sales multiple of 0.4 -- 52%, 59% and 80% discounts to commercial service peer averages. Taglich Brothers values the stock at $27, implying 76% of potential upside.

6. Akorn ( AKRX) markets diagnostic and therapeutic pharmaceuticals. Its second-quarter loss widened 36% to $9.4 million, or 10 cents a share, as revenue expanded 24% to $20 million. The operating margin turned positive. Akorn's stock trades at a forward earnings multiple of 22, a book value multiple of 6.4 and a sales multiple of 4.7, massive premiums to pharmaceutical industry averages. Two analysts rate Akorn's stock "buy" and one ranks it "sell." A median target of $5.25 suggests a return of 31%. Craig-Hallum Capital predicts a gain of 38% to $5.50.

5. Joe's Jeans ( JOEZ) designs high-end denim and apparel. Second-quarter profit tumbled 60% to $530,000, or 1 cent per share, as revenue surged 51% to $26 million. The operating margin dropped from 9.6% to 4.5%. Joe's Jeans shares sell for a trailing earnings multiple of 5.3, a book value multiple of 2 and a sales multiple of 1.3 -- 77%, 49% and 31% discounts to peer averages. They're expensive based on forward earnings and cash flow. Two researchers rank the stock "buy" and one ranks it "hold." Roth Capital projects a rise of 66% to $3.50.

4. Amtech Systems ( ASYS) sells wafer-manufacturing equipment to solar and semiconductor companies. Amtech swung to a fiscal third-quarter profit of $3.9 million, or 42 cents a share, from a loss of $240,000, or 3 cents, a year earlier. Revenue more than tripled to $43 million. The operating margin turned positive. Amtech's stock trades at a book value multiple of 2.3 and a sales multiple of 1.9 -- 59% and 43% discounts to semiconductor industry averages. It's expensive based on cash flow per share. All four analysts covering Amtech rate its stock "buy."

3. Libbey ( LBY) designs and sells tableware products. Second-quarter net income more than tripled to $9.6 million and earnings per share more than doubled to 47 cents. Revenue increased 3.7%. The operating margin rose from 6.1% to 13%. Libbey's stock sells for a trailing earnings multiple of 4.6, a forward earnings multiple of 9.2, a sales multiple of 0.3 and a cash flow multiple of 4.2 -- 93%, 70%, 64% and 39% discounts to peer averages. Two analysts rate the stock "buy" and one ranks it "hold." Jefferies ( JEF) forecasts an advance of 52% to $20.

2. WHX Corp. ( WXCO) owns precious metals, tubing and engineered-materials businesses. WHX swung to a second-quarter profit of $6.3 million, or 55 cents a share, from a year-earlier loss of $4.1 million, or 28 cents. Revenue grew 32% to $181 million. The operating margin rose from 5.1% to 9%. WHX's stock trades at a sales multiple of 0.2 and a cash flow multiple of 2.4 -- 98% and 87% discounts to materials industry averages. No sell-side analysts follow WHX, which has a market value of $99 million. WHX has grown sales 4.8% annually, on average, since 2007.

1. Miller Petroleum ( MILL) explores for oil and gas. Miller swung to a fiscal first-quarter profit of $680,000, or 2 cents a share, from a loss of $70,000, or break-even, a year earlier. Revenue surged ninefold to $5.2 million. The operating margin remained negative. Miller's stock sells for a trailing earnings multiple of 0.6 and a book value multiple of 0.6 -- 96% and 85% discounts to oil and gas peer averages. Three analysts rate the stock "buy" and one rates it "hold." A median target of $9.50 implies 76% of upside.

-- Written by Jake Lynch in Boston.

>To see these stocks in action, visit the 10 Small-Cap Stocks That May Keep Soaring portfolio on Stockpickr.

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