SK Hynix Profit Multiplies by 7.3 on AI Memory

The first consequence lands on your purchase orders: when the memory maker multiplies profit by seven, the pricing power in your next server quote has already moved.

SK hynix's quarter, reported in this magazine's October 28 Morning edition, is the cleanest signal yet of where the AI build-out actually chokes. Operating profit multiplied by seven as demand for high-bandwidth memory — the stacks that feed AI accelerators — outran what the industry can produce.

Every AI server is a memory decision wearing a GPU headline. HBM capacity is booked far ahead, allocation goes to the largest buyers first, and the rest of the market discovers its lead times at quote stage. That is how a component most buyers never specified becomes the line that decides when a project ships.

For the manager, the move is to treat memory the way the last decade taught you to treat GPUs: forecast it, book it early, and read the memory line of every BOM as a schedule risk — not a commodity price.

The quarter behind the headline: revenue of ₩104.6 trillion (up 328% year on year), an operating margin of 80%, and net profit of ₩39.8 trillion. SK hynix says demand will keep outrunning supply until 2030, with more than half of its 2027–2028 HBM capacity already under long-term agreements with 14 customers.