Stocks Are Falling Sharply. The S&P 500 Is Vulnerable. LIVE S&P 500 Drops as Market Slide Extends to Third Session Last Updated: 36 min ago By Connor Smith The stock market's late-September slide was starting to snowball on Thursday. The S&P 500 was down 0.9%, while the Dow was off 220 points, or 0.5%. The Nasdaq Composite was down 1.3%. "Over the next few weeks, equities are the most vulnerable to a downside move since the April lows, in our view," writes Jonathan Krinsky, BTIG's chief market technician. T ...