Twitter (NYSE:

) fell 12.73% to $42.38 in pre-market trading. Twitter met Wall Street's earnings expectations. The company also issued a weak revenue forecast for the fourth quarter. In the latest period, Twitter's user base grew 23% to 284 million. Analysts at Nomura downgraded Twitter from Buy to Neutral and lowered the price target from $55.00 to $45.00. CommVault Systems (NASDAQ:

) shares slipped 8.17% to $40.13 in pre-market trading after the company reported downbeat quarterly results. DBV Technologies SA (NASDAQ:

) shares declined 6.83% to $24.70 in pre-market trading after falling 1.81% on Monday. Kohl's (NYSE:

) shares dropped 6.40% to $54.80 in pre-market trading after the company issued a weak guidance on Monday. The company projected comparable sales to drop by 1.4% in the third quarter. It also expected 2014 diluted earnings on an EPS basis to be at the low end of previous forecast.