Investors who want exposure to alternative investments would benefit from considering an exchange-traded fund. If the increase in assets under management seen at Global X Funds is any indication, they wouldn't be alone in that interest.

The New York-based ETF provider announced Friday that as of Nov. 5 it has over $1 billion in assets under management, up from $88 million at the beginning of 2010. The firm has increased the number of ETFs it offers from seven to 17.

Global X's largest fund, the Silver Miners ETF (SIL), has $251 million in assets. The FTSE Colombia 20 ETF (GXG) has $198 million in assets, and the third largest fund, the China Consumer ETF (CHIQ), manages $192 million.

Global X also offers fund suites that invest in China, Latin America, and global commodities.

Commodity ETFs are proving popular. Global X announced that its uranium, gold and lithium ETFs have "garnered some of the highest trading volumes" on their launch days in 2010.

"Global X ETFs are highly accessible and agile tools for capturing a distinct slice of the market, and many times provide exposure where it would otherwise be expensive or difficult to access,"Bruno del Ama, CEO of Global X, said in a press release.

Global X isn't the only ETF provider enjoying success of late. Charles Swab announced Nov. 9 that ETF assets exceeded $100 billion, and ETF Securities announced that its suite of commodities funds managed over $2.5 billion.