"Despite SBF having an equity stake in Robinhood, we have no direct exposure to Alameda, FTX, or any of its entities," he wrote, referring to FTX CEO Sam Bankman-Fried. He said there were elevated trading volumes recently and that the last couple of days were "our two biggest days of crypto inflows ever."

He did not quantify the flows. Cryptocurrency markets have been sliding as uncertainty swirls around the fate of FTX.

(Reporting by Tom Westbrook; Editing by Jacqueline Wong)