Samsung posts a record quarterly profit on AI memory demand, as shares slip

Samsung Electronics offered a startling measure of the artificial-intelligence boom on Tuesday, reporting a record quarterly profit driven by demand for the memory chips that AI systems consume. But its stock slipped, underscoring a growing question in the market: whether the spending fueling these results can continue.

The numbers

In preliminary guidance for the April-to-June quarter, Samsung said operating profit reached about 89.4 trillion won, or roughly $58 billion, a jump of more than 1,800 percent from the same period a year earlier, CNBC reported. Revenue came in around 171 trillion won, a record. The enormous year-over-year percentage partly reflects how weak the comparable quarter was in 2025, when the memory business was in a slump.

Even so, the scale is remarkable. South Korean news outlets noted that the quarter's operating profit exceeded Samsung's entire operating profit for all of last year, as Seoul Economic Daily reported. These are preliminary figures; Samsung typically follows them with detailed results, expected later in July.

What is driving it

The engine is memory. Prices for memory chips have recovered, and demand for high-bandwidth memory, a specialized product that pairs with the processors used to train and run AI models, has surged. That combination has turned a business that was losing money not long ago into an extraordinary profit center, as cloud companies race to build out AI computing.

Why the stock fell

The market's reaction was cooler than the headline profit might suggest, with Samsung shares declining even as it announced a record, CNBC reported. The worry is not this quarter but the next several: investors are asking whether the heavy capital spending on AI by a handful of large customers is sustainable, and what happens to memory prices if it slows. A boom built on a spending wave is only as durable as the wave.

The bigger picture

Samsung is not alone in riding, and depending on, the AI build-out; rivals SK Hynix and Micron are competing for the same memory demand, and chipmakers across the industry have tied their fortunes to it. For now, the results are real and record-breaking. The debate the numbers have touched off is about tomorrow: whether AI demand keeps climbing at this pace, or whether the industry is pricing in a boom that cannot hold. Samsung's fuller earnings report, due later this month, will offer the next read.