(Bloomberg) — With approval for a conventional cryptocurrency ETF still nowhere in sight, at least one U.S. money manager is looking to tap one of the other hot trends on the blockchain.Most Read from BloombergReliving the New York Subway Map DebateChina Cash Flowed Through Congo Bank to Former President’s Cronies‘Ghost Signs’ Haunt London’s Reviving Neighborhoods‘Pension Poachers’ Are Targeting America’s Elderly VeteransDefiance ETFs is launching the Defiance Digital Revolution ETF (ticker NFT