US investment in Asia reached $605 billion in 2011, up from $227 billion in 2001 and growing at an average rate of 10% per year.
Asian investment in the United States was $410 billion in 2011, more than double what it was in 2001.
Source: US Bureau of Economic Analysis
Japan is the only major Asian country that has invested more in the US than the US has in the corresponding country. Investment also supports trade, as US affiliates of Asia-owned companies accounted for 5% ($67 billion) of all US goods exports and 11% ($212 billion) of all US goods imports in 2010.