Wall Street capped a choppy week with a second straight weekly loss for the S&P 500 Friday as worries about a potential escalation in the trade war between the US and China erased early gains. Technology companies led the broad slide, the AP reports, as investors weighed a report saying the Trump administration is considering ways to limit US investments in China. The S&P 500 index fell 15.83 points, or 0.5%, to 2,961.79. The benchmark index finished the week with a 1% loss. Even so, it remains 2.1% below its all-time high set in July. The Dow Jones Industrial Average dropped 70.87 points, or 0.3%, to 26,820.25. The Nasdaq, which is heavily weighted with technology stocks, lost 91.03 points, or 1.1%, to 7,939.63. The yield on the 10-year Treasury note held at 1.68%. (More stock market stories.)