(Bloomberg) -- Capital Group Cos., owners of the $1.17 trillion American Funds family, has joined money managers including BlackRock Inc. in seeking regulatory approval for a new type of exchange-traded fund.

Capital Group filed today with the U.S. Securities and Exchange Commission to open a non-transparent, actively-managed ETF, a product that would clear the way for traditional stock- picking managers to offer their funds in an ETF package.

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