On August 19, 2024, trading volumes for major U.S. stock indices were significantly below average, with the SPDR S&P 500 ETF Trust (SPY) and Invesco QQQ Trust (QQQ) both running over 40% below average daily volume. The iShares Russell 2000 ETF (IWM) was reported at 53% below average. The sluggish trading environment continued into August 20, with SPY experiencing one of the lightest volume days in the past 18 months. The reduced trading activity is attributed to market participants awaiting upcoming events, such as the Jackson Hole Economic Symposium and Labor Day, which are expected to influence market dynamics.