The S&P 500 ($SPX) closed down 1.6%, marking its first 1% downside move in over a month, indicating a broad market sell-off. While most sectors were red, defensive plays like Walmart ($WMT), Costco ($COST), and healthcare stocks such as Eli Lilly ($LLY) and Johnson & Johnson ($JNJ) showed resilience, posting gains. Investors may consider rotating into defensive sectors or cash for the upcoming week given the market's shift.