US stock market September rally prediction: History says September sinks stocks — yet the equal-weight S&P 500 just logged its longest winning streak in years. Is this the moment the market flips the script?

📌 U.S. Equities September Seasonality Alert

Key Fact:
The equal-weight S&P 500 (RSP) posted a seven-session winning streak in August, its longest since 2021, while historical data shows September averages a 0.7% decline for the S&P 500 since 1945.

💡 Impact:
▪️ Broadening rally signals potential rotation into industrials, financials, and healthcare sectors.
▪️ Seasonal trends suggest heightened volatility or pullback risks in September.

⚡ Action:
Monitor sector rotation and Fed policy signals ahead of historical mid-month weakness.

Stay data-driven.