Blue chips led stocks to a lower finish today.
The Dow Industrials slid 255 points, the Nasdaq Composite dropped 67, and the S&P 500 eased 11.
Shares of Schlumberger rose 1.3% after the oilfield-services company posted better-than-expected quarterly results.
Oil prices fell slightly. November crude dipped 15 cents to settle at $53.78 a barrel.
The Pentagon has awarded Raytheon a contract valued by analysts at up to $5 billion to build a new radar system for the Patriot missile defense system, concluding one of the year's most closely watched weapons contests. Raytheon won the three-way contest that also involved Lockheed Martin and Northrop Grumman.
Separately, the Pentagon's chief weapons' buyer says a decision to move the Lockheed Martin F-35 program to full production--originally set for December--could be delayed by up to 13 months. Lockheed’s shares fell 1.2%