Ambarella -11.5% as Chinese customer hits blacklist

• Ambarella (NASDAQ:AMBA) has slid 11.5% after its customer Hangzhou Hikvision was one of a number of Chinese companies put on a blacklist by the Trump administration.
• Hikvision is thought to account for a percentage of revenues in the high teens for Ambarella.
• Shares had fallen 1.5% during the regular session.