Some firms and analysts use the MSCI (Morgan Stanley Capital International) World Index for a more global benchmark.
As of February, 2015, 58% of MSCI World was 58% US, 8% Japan, 8% UK, 4% France, 4% Canada, 18% other.
Top 10 Constituents
1. CH - Switzerland
* DM countries include: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the UK and the US.
MSCI EAFE* Index & S&P 42 year:
MSCI World Index & S&P 30 year:
MSCI vs S&P 2 year
With all the concerns about Europe the MSCI still went up 4.4% in the first 4 months of 2015 while the S&P went up 5.7%.
You can't go to yahoo finance and get prices for MSCI ( Morgan Stanley Capital International) because it is proprietary. You have to go to www.msci.com/products/indexes/performance.html, which is hard to navigate and may require an account now. You need to select net index level when you drill down to the details. There are some ETFs which track the MSCI. URTH and ACWI.