Citadel Securities Among Firms Fined Over Trading Data Errors

  • Three companies agree to pay more than $6 million in penalties
  • Brokerages provided regulators with incomplete data, SEC says

The building that houses Citadel Investment Group LLC, center, stands in Chicago.

Photographer: Tim Boyle/Bloomberg

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Citadel Securities LLC and two other brokerages agreed to pay fines to settle U.S. Securities and Exchange Commission claims that they filed incomplete and inaccurate securities trading information to the agency.