Stifel analyst Tore Svanberg noted Reuters' report that two of the 28 Chinese security companies added to the U.S. Entity List were Hikvision and Dahua, which he estimates make up about 25% of Ambarella's security camera revenue or about 15% of total sales. He thinks Ambarella may be able to continue to ship product to these customers, but expects the restrictions to hurt the camera makers' ability to acquire the full bill of materials, which could hurt Ambarella's end-market sales, Svanberg stated. He lowered his price target on Ambarella to $54 from $61 in light of the news and keeps a Hold rating on the stock.