Abu Dhabi Investment Authority Abu Dhabi Investment Authority (abbreviated as adia) is one of the largest sovereign wealth funds in the world. It was founded in 1976 in Abu Dhabi and owned by the emirate of Abu Dhabi. The funds mainly come from Abu Dhabi's oil revenue. The Abu Dhabi Investment Authority has never announced its asset status, but it is estimated that it is between us $800 billion and US $875 billion Swf estimates its assets at $773 billion (2014 data).
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