The iShares S&P Global 100 Index Fund is an exchange-traded fund holding global stocks. The fund tracks the S&P Global 100 index.
The ticker symbol is IOO.
(as of May 2010)
Similar world stock funds are iShares MSCI ACWI Index (ACWI) and Vanguard Total World Stock Index ETF (VT). In the United States, these funds are not as popular as the ex-US funds such as iShares MSCI EAFE (EFA).[1] [2]
The average market cap of the iShares S&P Global 100 is just a hair smaller than its relative iShares S&P 100 ($147bn versus $150bn as of December 2014). It also has higher alpha over the period 2011-2014.