U.S. stocks open slightly lower as third quarter begins

U.S. stocks opened lower on Friday ahead of a long holiday weekend as markets kicked off the second half of the year in the red. The Dow Jones Industrial Average
DJIA,
+0.21%
dropped 54 points, or 0.2%, to 30,720. The S&P 500
SPX,
+0.19%
shed 4 points, or 0.1%, to 3,781. The Nasdaq Composite
COMP,
-0.09%
dropped 20 points, or 0.2%, to 11,006. Stocks just wrapped up one of the first first-half stretches in decades during what has been a brutal year as growth fears and inflation have battered markets.