The tech-heavy index was up 0.33 percent at 7,914.22, a quarter of a percent away from hitting an all-time high.
With the second-quarter US earnings season mostly over, investors are turning their attention from solid economic growth and corporate profits to other risks, said Michael Arone, chief investment strategist at State Street Global Advisors in Boston.
At 9:50 a.m. EDT the Dow Jones Industrial Average was down 14.63 points, or 0.06 percent, at 25,569.12, the S&P 500 was unchanged at 2,857.70 and the Nasdaq Composite was up 11.39 points, or 0.14 percent, at 7,899.72.
Aug 10 (Reuters) - The Dow Jones Industrial Average fell more than 200 points on Friday amid a widespread selloff in global stocks as the Turkish lira tumbled due to concerns over the country's economy and a deepening rift with the United States.
The Russell 2000 index of smaller-company stocks fell 4.08 points, or 0.2 per cent, to 1,686.80. Occidental Petroleum OXY.N fell 4.2 percent after it maintained a tepid production forecast for the year.
The SEC Is Intensifying Its Probe of Tesla
Shares were down 6 percent to $347.26 in midday trading Thursday. Musk has long battled publicly with short sellers of the stock. Tesla didn't respond to requests for comment Wednesday.
The S&P 500 is up 13.23 points, or 0.5 per cent.
Meanwhile, concerns over escalating trade conflict between the US and China weighed on the trade-sensitive S&P 500 Industrials Index, which ended up losing 0.57% on the day.
The S&P 500 is up 159.67 points, or 6 per cent.
Brent crude futures fell 8 cents to $72.20 a barrel and USA crude futures were down 2 cents at $66.92 a barrel.
Declining issues outnumbered advancers for a 1.63-to-1 ratio on the NYSE and for a 1.06-to-1 ratio on the Nasdaq.