What a month May turned out to be! After a rocky start to the year, Wall Street delivered its strongest monthly rally in a year and a half, with the S&P 500 posting its best May since 1990—a gain of more than 6%. The Dow Jones Industrials climbed 4%, and the Nasdaq soared, up 10% for the month, driven by a tech resurgence led by the artificial intelligence industry. Nvidia was the standout, jumping over 23% in May after a blockbuster earnings report and continued optimism around AI.