Ambarella (NASDAQ: AMBA) recently received a number of ratings updates from brokerages and research firms: 11/3/2015 – Ambarella was upgraded by analysts at Zacks from a “hold” rating to a “buy” rating. They now have a $58.00 price target on the stock. According to Zacks, “Ambarella, Inc. develops video compression and image processing semiconductors. The […]