According to Bloomberg’s Consumer Confident Index, consumer sentiment experienced its biggest two-week slump since 2011, falling 1.7 points to 61.2 for the week ending August 11.

The Comfort Index also saw the comfort gauge of the economy slide to 62.9, a decline of 4.6 points, and the personal finances index fall to 65.7.

Bloomberg reported this slide cam among renewed fears of stock market volatility.