The S&P 500 Index ($SPX) is experiencing notable fluctuations as it approaches the end of October. The index has shown resilience, maintaining strong support around the 5,800 level, despite a recent three-day decline totaling 1%. Analysts suggest that the end of October is typically a period of weakness, which could set the stage for a stronger performance in early November. The market has seen a dip after six consecutive weeks of gains, with the index currently facing resistance around the 5,850 mark. Mutual funds are also nearing their fiscal year-end on October 31, which could contribute to market volatility. Key support levels to watch include 5,780 and 5,775, while a break below these levels could signal further pullback. The index was green and reached a new all-time high before facing a bearish cross.