(Bloomberg) -- BlackRock Inc. and Fidelity Investments will be studied by U.S. regulators who are in the early stages of reviewing whether asset managers pose a potential risk to the financial system, two people with knowledge of the matter said.

The Financial Stability Oversight Council’s discussion Oct. 31 and agreement to review New York-based BlackRock and Boston- based Fidelity don’t necessarily mean the companies will be designated systemically important by the council, according to the people, who requested anonymity because the meeting was closed to the public. The panel didn’t take any formal action regarding the companies.

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