Gary Gensler, new chair of the Securities and Exchange Commission, has expressed concern about the prominent role Citadel Securities and other big trading firms are playing in US equity markets, warning that “healthy competition” could be at risk.
In testimony released ahead of his appearance before the House financial services committee on Thursday, Gensler said he had directed his staff to look into whether policies were needed to deal with the small number of market makers that are taking a growing share of retail trading volume.
“One firm, Citadel Securities, has publicly stated that it executes about 47 per cent of all retail volume. In January, two firms executed more volume than all but one exchange, Nasdaq,” Gensler said.
“History and economics tell us that when markets are concentrated, those firms with the greatest market share tend to have the ability to profit from that concentration,” he said. “Market concentration can also lead to fragility, deter healthy competition, and limit innovation.”
Gensler is scheduled to appear at the third hearing into the explosive trading in GameStop and other so-called meme stocks in January.
Trading volumes in the US surged that month as retail investors flocked into markets, prompting brokers such as Robinhood to introduce trading restrictions that angered investors and drew the attention of lawmakers.
The market activity galvanised policymakers in Washington and investors. Lawmakers have focused much of their attention on “payment for order flow”, in which brokers such as Robinhood are paid to route orders to market makers like Citadel Securities and Virtu.
That practice has been a boon for brokers. It generated nearly $1bn for Robinhood, Charles Schwab and ETrade in the first quarter, according to Piper Sandler.
Gensler noted that other countries, including the UK and Canada, do not allow payment for order flow.
“Higher volumes of trades generate more payments for order flow,” he said. “This brings to mind a number of questions: do broker-dealers have inherent conflicts of interest? If so, are customers getting best execution in the context of that conflict?”
Gensler also said he had directed his staff to consider recommendations for greater disclosure on total return swaps, the derivatives used by the family office Archegos. The vehicle, run by the trader Bill Hwang, collapsed in March after several concentrated bets moved against the group, and banks have sustained more than $10bn of losses as a result.
Market watchdogs have expressed concerns that regulators had little or no view of the huge trades being made by Archegos.
“Whenever there are major market events, it’s a good idea to consider what risks they might have placed on the entire financial system, even when the system holds,” Gensler said.
“Issues of concentration, whether among market makers or brokers at the clearinghouse, may increase potential system-wide risks, should any single incumbent with significant size or market share fail.”
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