Memory chip profits remain extraordinary, but investors are starting to ask where the ceiling lies.
On Thursday, Samsung Electronics Co., Ltd. released its third-quarter financial report for the period ending September 30, delivering results that were both record-breaking and below expectations: consolidated operating profit reached 107.4 trillion Korean won (approximately $80 billion), surging 783% year-over-year and setting a record for the fourth consecutive quarter. It also marked the first time a global technology company's quarterly profit exceeded the 100 trillion won milestone. Quarterly consolidated revenue hit 195.25 trillion won, jumping 126.9% year-over-year.
However, what drew more market attention was a subtle shortfall—the semiconductor division's operating profit of 106.5 trillion won came in roughly 2 trillion won below the analyst consensus of 108.5 trillion won. Amid a global wave of AI infrastructure investment, this 2 trillion won gap was enough to prompt investors to reassess the quality of this AI-driven memory chip super-cycle. As a result, Samsung's stock price on the Korean exchange fell more than 4%.
The earnings report showed that the Device Solutions (DS) division, which handles semiconductors, posted quarterly revenue of 147.1 trillion won and operating profit of 106.5 trillion won, soaring more than 15-fold year-over-year and contributing nearly all of the company's profits. Robust demand for high-bandwidth memory (HBM) and server SSDs, combined with surging memory chip prices, pushed the division's operating margin to a historic high of approximately 72%.
In stark contrast to the semiconductor division's brilliance, the Device Experience (DX) division—responsible for smartphones, home appliances, and other end-user products—recorded an operating loss of approximately 800 billion won, extending the losses from the previous quarter. The reason: rising memory chip prices are a double-edged sword. While they bolster semiconductor profits, they also inflate component costs for phones and consumer electronics, squeezing profitability in downstream businesses. This stark divergence has also sparked internal tension over departmental performance bonus allocations—semiconductor employees and their consumer electronics colleagues find themselves at opposite ends of the profit spectrum.
The Market Anxiety Behind the Miss
Analysts noted that the semiconductor division's operating profit of 106.5 trillion won fell short of the analyst average estimate of 108.5 trillion won, pouring cold water on recently heated AI optimism. The root of the anxiety: investors are beginning to doubt whether Samsung can fully convert industry-wide supply shortages into higher profit margins—especially as competitors lock in substantial profits through long-term HBM contracts.
SK Hynix (SKHY.US) has seized an early advantage with long-term HBM contracts deeply tied to NVIDIA's (NVDA.US) AI accelerators, while Samsung, as a latecomer in the HBM market, is still striving to catch up.
Broader concerns point to the sustainability of the AI narrative itself. Recently, neocloud players—specialized developers focused on AI data centers, represented by CoreWeave, Inc. (CRWV.US)—have suffered a series of setbacks, temporarily shaking market confidence in the long-term resilience of AI infrastructure investment. Although hyperscalers like Meta (META.US) and Amazon (AMZN.US) continue to pour hundreds of billions of dollars into infrastructure, questions about when these investments will generate adequate returns have never subsided.
What investors want to see is proof of stronger profitability, a better product mix, and longer-term customer commitments.
SK Hynix's previously released earnings were nothing short of explosive, and the company announced plans to return an additional approximately $45 billion to shareholders, while projecting that supply shortages will persist until at least 2030—providing a confidence endorsement for long-term demand strength.
Samsung, meanwhile, announced in August that it plans to return as much as 110 trillion won to investors this year, returning about half of its free cash flow to shareholders. This includes a planned 30 trillion won cash dividend in the third quarter and approximately 15 trillion won in share buybacks for employee compensation.
Samsung's earnings report paints a classic "super-cycle" picture: memory chip shortages drive prices and profits higher in tandem, the semiconductor business races ahead, while pressure on end-user businesses and doubts about AI investment sustainability form two dark clouds overhead.
For investors, the key question is no longer "how much was earned this quarter" but "how long can these extraordinary profits last."
Samsung expects to significantly increase memory chip capital expenditure by 2027 and believes chip supply tightness will persist until 2028, while SK Hynix extends its outlook to 2030. If this assessment holds, memory chip makers' profit boom could last for several more years. But if returns on AI capital expenditure fail to materialize, current high valuations and high profits could face dramatic reassessment.
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