» more from Commodities

6. SPDR Gold ETF (GLD)

Value of holdings: $64.53 billion
Holdings total: 1,213.9 tons

Unlike other major gold holdings, this is one that investors can actually buy in to. As the price of gold fluctuates, so does the value of SPDR Gold Trust, also known the GLD.The fund held 38,845,889 ounces, or 1,213.9 tons of gold as of its 10-Q filing on June 30, 2011.

Although gold is off it’s all time highs, during the week of August 22, 2011, the SPDR Gold Trust surpassedthe heavily-traded S&P 500 SPDR (SPY) for the first time. Like many investors, the ETF has indicated they have increased their holdings of goldsince their most recent filing.

Pictured: Gold bars are displayed at the GLD Fifth Anniversary Celebration Hosted By SPDR Gold Shares in New York

Photo: Getty Images || Source: SPDR Gold Trust Prospectus, State Street Global Advisors as of June 30, 2011 | Calculations by CNBC