KeyBanc analysts raised their price target for Marvell Technology (MRVL) to $400, implying an 83% upside. Despite the stock falling 34% since June, the company's Q2 revenue grew 37% year-over-year, and it raised its full-year guidance. KeyBanc believes Marvell has an advantage in custom AI chips and optical interconnect chips, with its data center revenue expected to grow over 60% in fiscal year 2028.