BOSTON ( TheStreet) -- General Motors' ( GM) initial public offering hogged the headlines, but other initial share sales made investors more money -- doubling returns in some cases.

The average IPO in 2010 has increased 24% from its offer price, according to Renaissance Capital. That's better than last year's 16% gain and a decline of 27% in 2008, when the global economic crisis bore down. The benchmark S&P 500 Index has risen 13% so far this year.

A total of 154 IPOs have been priced in 2010, a 144% increase from 2009. More than $38 billion in proceeds have been raised, a 76% jump from last year.

Some IPOs have rewarded investors with outsized returns, well above average. TheStreet examined the highest-returning IPOs this year, using data provided by iMetrix.


10. JinkoSolar Holding ( JKS)

Company Profile: JinkoSolar is a China-based maker of solar products, including silicon wafers, solar cells and solar modules.

IPO Date: May 13

Offer Price: JinkoSolar offered 5.8 million shares at $11 per share

Return Since IPO: 103%

Analyst Consensus: Among Wall Street analysts covering the stock, four rate JinkoSolar a "buy." One research firm says investors should hold shares, while another recommends JinkoSolar as a "sell."

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