The broad-based S&P 500 also dropped 2.3 percent to 2,633.25, while the tech-rich Nasdaq Composite Index slumped 2.8 percent to 6,986.27.
The broad-based S&P 500 also dropped 2.3 percent to 2,633.25, while the tech-rich Nasdaq Composite Index slumped 2.8 percent to 6,986.27.