Poet Technologies' stock craters nearly 50% in record drop, as Marvell relationship sours - MarketWatch Tech Stocks Poet Technologies' stock craters nearly 50% in record drop, as Marvell relationship sours Investors are dumping the Poet shares after the company disclosed that chip maker Marvell is walking away from a key AI partnership Published: April 27, 2026 at 2:36 p.m. ET Resize Poet Technologies shares hit a multiyear high of $15.50 last week before Monday's disclosure triggered a record-breaking sell ...