DEFINITION of 'Abu Dhabi Investment Authority - ADIA'
A government-owned investment organization that manages the sovereign wealth fund for Abu Dhabi, United Arab Emirates. According to the Sovereign Wealth Fund Institute's rankings, the ADIA sovereign wealth fund ranked as the largest in the world in 2010. It is also one of the world's largest institutional investors.
BREAKING DOWN 'Abu Dhabi Investment Authority - ADIA'
The huge amount of wealth managed by the ADIA is sourced primarily from Abu Dhabi's large oil reserves. The ADIA prefers to remain secretive, so not a great deal is known about its investment methodology or portfolio of holdings.