In other notable moves:
• Apple dropped $11.53, or 2.3 percent, to $494.60 after investors were underwhelmed by its new iPhone lineup.
• Microsoft rose 73 cents, or 2.3 percent, to $32.39 on rumors about who might be its next CEO when Steve Ballmer retires next year.
— Urban Outfitters fell $4.36, or 10 percent, to $38.35 after saying its third-quarter sales increases are weaker than earlier in the year.
Traders sold safe-play assets as the threat of a strike on Syria faded. Gold fell $22.70, or 1.9 percent, to $1,364 an ounce, and the yield on the benchmark 10-year Treasury note rose to 2.97 percent from 2.91 percent.
The dollar strengthened to 100.33 Japanese yen, and fell slightly against the euro.