US regional banks experienced a significant surge in stock prices, with the Regional Banks Index ($KRE) rising over 13% on November 6, 2024. This marked the largest gain in four years and the fifth largest in the last two decades. Investment banks also saw substantial increases, with Wells Fargo ($WFC) up 13.2%, Goldman Sachs ($GS) up 13.1%, Morgan Stanley ($MS) up 11.6%, JP Morgan Chase ($JPM) up 11.6%, Citigroup ($C) up 8.4%, and Bank of America ($BAC) up 8.4%. The rally in banking stocks comes amid speculation that big banks might benefit more under a potential second term for Trump, especially with high long-term interest rates. The $KRE ETF saw a 12.5% increase on $3.3 billion in volume, an unusual performance for the 18-year-old ETF. The Investment Banks Index ($XLF) also rallied, gaining 4.5% in pre-market trading.