Shares were down 34% amid an increase in intraday trading volume to more than 1 million from its daily average of roughly 238,000.
Cracker Barrel Old Country Store (CBRL) dropped 12% after reporting a drop in Q1 adjusted earnings, missing analyst estimates.
More than 1.2 million shares traded intraday compared with its daily average volume of roughly 453,000.
Zscaler (ZS) set out conservative guidance for billings growth because of longer sales cycles, sending the stock 11% lower intraday even as the cloud security company raised its revenue and earnings projections for the fiscal year.
Shares slumped 12% amid an increase in intraday trading volume to over 7.2 million versus its daily average of about 2.6 million.
Price: 1.40, Change: -0.71, Percent Change: -33.89