In Brief SK Hynix has delivered the kind of AI memory earnings that would normally look impossible to criticise. SK Hynix has delivered the kind of AI memory earnings that would normally look impossible to criticise. Revenue jumped, operating profit hit a record and demand for high-bandwidth memory remains strong. Reuters reported via Investing.com that the results still missed market expectations, sending SK Hynix shares down nearly 10 percent. SK Hynix may still be at the centre of the AI memory story, but the market is making clear that the easy part of the rally is over.