Hong Kong asset manager Avenir has disclosed that it now holds about US$1.3 billion worth of Bitcoin exchange-traded funds, marking one of the largest known exposures to the cryptocurrency product in Asia. Separately, Abu Dhabi–based Mubadala Investment Co. said its portfolio includes roughly US$534 million in Bitcoin ETFs. A Mubadala subsidiary, Al Warda Investments, reported a further US$147 million in fresh Bitcoin exposure, signalling an incremental build-up of holdings. The combined positions underline a growing appetite for Bitcoin among sovereign wealth and institutional investors in Asia and the Middle East, adding to evidence that the asset class is gaining mainstream acceptance in global portfolios.