WisdomTree Investments, the US publicly-traded asset manager that focuses on exchange-traded funds, has moved into Europe by buying start-up Boost ETP.

The deal will see the US firm acquire London-based Boost and form WisdomTree Europe. It will own a 75% stake in the newly-created entity, while existing Boost shareholders will retain 25%. The US firm has also committed $20 million in cash for WisdomTree Europe's expansion over the next four years, it said on Friday.