PANews reported on June 5th, citing Bloomberg, that CME Group CEO Terry Duffy expressed "deep concern" about the recent approval of perpetual contracts by US regulators. Duffy stated that perpetual contracts offer little practical use for institutional investors while exposing retail traders to excessive risk. He expressed "complete disagreement" with the CFTC's decision to approve the first batch of crypto perpetual contracts after a swift review and said he had contacted the CFTC chairman to express his concerns.

Duffy warns that perpetual contracts and prediction markets are fueling a frenzy of retail speculation, reminiscent of risky behavior before the 2008 financial crisis: "The housing market has been replaced by a speculative market, and this could be an impending disaster." The first perpetual contracts approved by the CFTC were listed by Kalshi, and several US exchanges are also discussing launching their own.