Despite a rally in US equities during May, institutional investors increased their stock selling significantly, offloading a net total of $50.78 billion in stocks. This figure is noticeably higher than the $30.93 billion sold in April and surpasses the yearly average of $42.73 billion for this investment group, according to recent data from S&P Global Market Intelligence. This shift indicates a cautious stance among institutions amidst market fluctuations. Investors should take note of these trends as they may provide insights into institutional sentiment and the potential future direction of the markets. With volatility in the air, understanding institutional behavior can be critical for personal investment strategies.