Global private equity firm Advent International has agreed to acquire a significant minority stake in Brazil-based digital investment marketplace Easynvest. Advent will invest through its Brazil-focused holding company Nyx Participações. Easynvest offers online brokerage and investment services to retail investors and has more than 150,000 active users and more than BRL10 billion (approximately US$3.2 billion) in assets under custody. Financial details of the transaction, which is subject to the approval of the Central Bank of Brazil, were not disclosed.