Wall Street strategists continue to raise S&P 500 forecasts above 8,000 even as RBC Capital Markets warns that the index could fall 5%-10% in the coming weeks. RBC, led by Lori Calvasina, retained its 12-month target of 8,150, implying roughly 6% upside from the index's September 8, 2026 close, while Ed Yardeni raised his 2026 year-end forecast to 8,400. RBC's September 9 assessment points to historically weak September trading, the Nov. 3 midterm elections, a higher perceived probability of a Democratic sweep, possible AI regulation and ongoing Iran-related tensions as sources of volatility. The firm views a 5%-10% decline as a routine correction and maintains its longer-term bullish case provided there is no major recession surprise or sharp unexpected increase in interest rates. Other caution signals include subdued volatility, elevated Treasury yields, concentrated earnings growth and heavily bullish sentiment. Nvidia and Micron account for roughly one-third of projected 2026 profit growth, while the ten largest contributors account for about two-thirds.