American billionaire investor Leon Cooperman has expressed concerns about the current market conditions, stating that he is selling into market strength and holding approximately 15% cash, significantly above the typical Wall Street allocation. Cooperman, who shared his views during a CNBC interview, cited high valuations and policy uncertainty as key reasons for his bearish outlook. He also mentioned his support for former President Donald Trump's focus on deficit reduction, but remains cautious about the overall market environment. Other notable investors, including Warren Buffet and Jamie Dimon, have also taken defensive positions, with Buffet reportedly hoarding record amounts of cash and Dimon selling large amounts of JP Morgan stock, raising questions about the potential for a market correction.