Depends on how long you want to hold it. If your timeline is 10 to 20 years, a US based Index Fund is probably not a bad idea. Shorter term is a crap shoot. My opinion is that North American Co's have a long ways to go to become competitive in the world markets, that combined with huge US debt and I believe we're in for an extended, underperforming North American Market.
Carrboro Bike Coalition - putting the "bike" in "CARrboro" :)
2011 Motobecane Fantom Cross Uno, 2009 Motobecane Fantom CX, and a Bakfiets
Previously: 2000 Trek 4500 (2000-2003), 2003 Novara Randonee (2003-2006), 2003 Giant Rainier (2003-2008), 2005 Xootr Swift (2005-2007), 2007 Nashbar 1x9 (2007-2011), 2011 Windsor Shetland (2011-2014)
Non-Bike hardware: Arch Linux - openSUSE 13.2 / Mac OS 10.6 - openSUSE Tumbleweed - CyanogenMod 11