The S&P 500 and Nasdaq are both set to post their largest single-day declines in five months

Odaily News: According to MSX.COM data, the Nasdaq 100 Index's decline has widened to 5.1%, while the S&P 500 Index is down 2.8%. Both the S&P 500 and Nasdaq have fallen to their lowest levels since late July, and both indices are set to record their largest single-day drops in five months.