Why Even High-Quality Financial Stocks American Express, Blackstone, and Ally Financial Plunged Today

Shares of large-cap financial stocks, even blue chip names such as American Express (AXP -3.88%), Blackstone (BX -8.42%), and Ally Financial (ALLY -4.74%), plunged on Monday, with the above three stocks falling 4.3%, 7.8%, and 5.1%, respectively, as of 2:17 p.m. ET.The across-the-board declines were likely due to angst over President Donald Trump's morning social media post regarding Federal Reserve Chairman Jay Powell, which some investors took as a threat to the Fed's independence. That opens up a potenti ...