August is usually a sleepy month for markets, with many professional investors off on holiday and trading volumes thin. But this year, the supposedly quiet stretch turned into another winning month. All four major indexes extended their streaks, with the Nasdaq Composite Index (Nasdaq) chalking up its fifth consecutive monthly gain – up 1.6%, its longest run in nearly a year and a half. The S&P 500 (S&P) added 1.9%, the Dow Jones Industrial Average (DJIA) climbed 3.2%, and the Toronto Stock Exchange Composite Index (TSX) led the pack with a surge of 4.8%, its strongest showing of the summer. For the S&P and DJIA, it marked their longest streak since fall 2024.
The rally was less about confiden