(Bloomberg) -- Pacific Investment Management Co. said it’s cooperating with regulators examining how the firm assigned asset prices at Bill Gross’s Pimco Total Return ETF.

“Pimco has been cooperating with the SEC in this non- public matter, and we take our regulatory obligations and responsibilities to our clients very seriously,” Mark Porterfield, a spokesman for Newport Beach, California-based Pimco, said in an e-mailed statement. “We believe our pricing procedures are entirely appropriate and in keeping with industry best-practices.”

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