Daily mean reversion strategies have shown strong performance as of September 11, 2024, with a year-to-date (YTD) return of 33.7% using SPXL and TQQQ. The win rate stands at 70% across 47 trades, with an average holding period of 3.5 days. Additionally, trend-following strategies have also performed well, achieving the second-best performance year-to-date since at least 2000. Despite the strong performance, some market analysts expect mean reversion to occur before the end of the year. The market has seen volatility in September, but single stock breadth remains strong, with new 52-week highs contributing to the NYHL cumulative measure. Investors should remain cautious, as certain sectors historically struggle during September.