A visitor looks at a model of SK hynix's high-bandwidth memory (HBM) technology during the 2025 World IT Show in Seoul on April 24, 2025.
South Korea's SK Hynix on Wednesday posted record quarterly revenue and profit, boosted by a strong demand for its high bandwidth memory used in generative AI chipsets.
The company is looking to expand production capacity in 2026, with its planned supply of memory products for 2026 already sold out.
Here are SK Hynix's third-quarter results versus LSEG SmartEstimates, which are weighted toward forecasts from analysts who are more consistently accurate:
Revenue: 24.45 trillion won ($17.13 billion) vs. 24.73 trillion won
24.45 trillion won ($17.13 billion) vs. 24.73 trillion won Operating profit: 11.38 trillion won vs. 11.39 trillion won
Revenue rose about 39% in the September quarter compared with the same period a year earlier, while operating profit surged 62%, year on year.
On a quarter-on-quarter basis, revenue was up 10%, while operating profit grew 24%. In its earnings release, the company noted that the quarterly operating profit had surpassed 10 trillion won for the first time.
Following the report, SK Hynix shares in South Korea popped over 5%, boosting its stock rally past 210% this year.
SK Hynix makes memory chips that are used to store data and can be found in everything from servers to consumer devices such as smartphones and laptops.
The company has benefited from a boom in artificial intelligence as a key supplier of high-bandwidth memory or HBM chips used to power AI data center servers.
"As demand across the memory segment has soared due to customers' expanding investments in AI infrastructure, SK Hynix once again surpassed the record-high performance of the previous quarter due to increased sales of high value-added products," SK Hynix said in a statement.
HBM falls into the broader category of dynamic random access memory, or DRAM — a type of semiconductor memory used to store data and program code that can be found in PCs, workstations and servers.
The company said it will begin supplying its next-generation HBM4 chips in the current quarter, following negotiations with unspecified customers. The chips represent the sixth generation of HBM technology.