Afternoon Market Losers

Tesla Motors TSLA dropped 11.23 percent to $113.14 after Goldman Sachs downgraded the company.

Joe's Jeans JOEZ plunged 20.56 percent to $1.48 after B. Riley & Co downgraded the stock from Buy to Neutral.

Heidrick & Struggles International HSII tumbled 16.41 percent to $14.93 after CEO L. Kevin Kelly stepped down recently.

Addus HomeCare ADUS dropped 13.66 percent to $19.91 after Baird downgraded the stock from Outperform to Neutral.

ExOne XONE after BB&T Capital Markets downgraded the company.