Sovereign wealth funds and central banks managing $29 trillion in assets are turning to energy assets, and raising concerns about the dollar, in a portfolio reassessment driven by unprecedented geopolitical shifts, according to an Invesco survey published on Monday. The survey of 90 sovereign wealth funds and 54 central banks showed an increasing focus on diversification, and investment portfolios that can "take a hit and still hold it together" amid trade tariffs, closed shipping channels and wars in Ukraine and the Middle East.