Mr. Market Miscalculates

Oaktree's Howard Marks analyzes the August 2024 market decline through the lens of investor psychology rather than economic fundamentals. He traces the S&P 500's 6.1% three-day drop to a confluence of events—Japan's rate hike, mixed U.S. economic data, and the unwinding of carry trades—but argues these triggered a psychological flip from optimism to pessimism rather than a material change in conditions. Marks emphasizes that markets oscillate between euphoria and depression, with investors obsessing over positives in good times and negatives in bad times, while ignoring the opposite side. He cites cognitive dissonance, contagion effects, and the brevity of financial memory as drivers of irrational behavior. Fundamentals, he argues, don't change much day-to-day; price swings reflect shifts in who wants to own assets, not intrinsic value. The memo advocates for disciplined investors to exploit Mr. Market's overreactions by buying when pessimism is rampant and selling when enthusiasm runs high.