Wall Street tumbles, and US stocks head toward their worst loss in a month

NEW YORK (AP) — U.S. stocks are tumbling on Tuesday, and some of Wall Street’s biggest stars are leading the way lower.

The S&P 500 sank 1.2% and was on track for its worst loss in a month. The Dow Jones Industrial Average was down 498 points, or 1.1%, as of 9:37 a.m. Eastern time, and the Nasdaq composite was down a market-leading 1.4%. All three are still close to their recently set records .