Shares of major U.S. banks JPMorgan Chase & Co (JPM.N), Wells Fargo (WFC.N) and Bank of America (BAC.N) dropped more than 2% in premarket trade.
Shares of regional lenders First Republic Bank (FRC.N), PacWest Bancorp (PACW.O), Western Alliance Bancorp (WAL.N) and Truist Financial Corp (TFC.N) fell between 2.1% and 2.8%.
European banks also came under pressure, with a report of a U.S. probe on Credit Suisse and UBS (UBS.N) further souring the mood.
ET, Dow e-minis were down 304 points, or 0.94%, S&P 500 e-minis were down 31.5 points, or 0.79%, and Nasdaq 100 e-minis were down 59 points, or 0.46%.
Reporting by Amruta Khandekar and Ankika Biswas; Editing by Sriraj Kalluvila and Vinay DwivediOur Standards: The Thomson Reuters Trust Principles.