
SK hynix has reported a record third quarter as AI infrastructure spending drove demand for high-bandwidth memory and server products. The South Korean chipmaker said on 28 October that revenue reached 104.6155 trillion won, while operating profit rose to 83.3338 trillion won. Those figures are preliminary, but they place memory at the centre of one of the most remarkable earnings cycles in technology.
In its official results statement, the company said sales increased 32% from the previous quarter and operating profit rose 38%. The 80% operating margin reflects a market in which demand for advanced memory has risen faster than supply. The company also said server DDR5 sales expanded and HBM4 shipments began in earnest.
AI accelerators receive much of the attention, but they cannot perform at full speed without memory that supplies data quickly enough. High-bandwidth memory, or HBM, is stacked close to advanced processors to move large amounts of data with less delay. As AI labs and cloud companies buy more computing systems, memory has become a critical constraint rather than a routine component.
That helps explain why SK hynix is benefiting from more than a temporary rise in chip prices. Its earnings are also tied to the mix of products it can make and the capacity it can reserve for customers. TechBooky has previously examined how South Korea’s wider technology strategy is becoming tied to AI memory. The latest results show the scale of the commercial opportunity behind that policy discussion.
SK hynix expects HBM4 to overtake HBM3E in shipment volume and revenue in the fourth quarter. It also says long-term agreements now cover more than half of its planned production capacity for 2027 and 2028. Those commitments may give the company better visibility than the spot memory market, although the terms and prices of the contracts have not been disclosed.
A shortage forecast is not a guarantee
The most consequential claim in the release may be SK hynix’s expectation that memory demand will exceed supply through 2030. Building new facilities takes time, and the most advanced manufacturing processes are difficult to increase quickly. Even so, this is the company’s forecast, not a certainty. Changes in AI spending, rival production and pricing could alter the balance.
There is another caution in the results. Net profit fell from the previous quarter despite the record operating performance, partly reflecting the effect of investment-related gains in the earlier period. That does not undermine the strength of the core memory business, but it shows why a single headline number does not tell the whole earnings story.
SK hynix plans to expand HBM4 production at its M15X facility and increase output of high-value server memory and enterprise SSDs. Investors will watch whether that added supply can meet orders without eroding the prices that made this quarter so profitable. For the wider AI industry, the results are a reminder that the computing race is also a memory race.






