Samsung Smashes Profit Record on AI-Driven Memory Boom
Samsung Electronics posted a record fourth quarter, with operating profit more than tripling and edging past market expectations as tight memory supply and strong demand from AI server buildouts pushed chip prices higher. The results underscore how quickly the memory cycle has swung back in favor of suppliers, even as Samsung cautioned that rising component costs could weigh on parts of its consumer-device business in the quarters ahead.
For the December quarter, Samsung reported revenue of 93.8 trillion won, and operating profit of 20.1 trillion won, both slightly ahead of consensus forecasts. Revenue rose about 24% from a year earlier to a new quarterly high, while operating profit jumped more than 200% year on year and surpassed the company’s previous peak set during the last major memory upcycle in 2018.
Memory leads the turnaround
The key driver was Samsung’s memory division, which benefited from a broad price rebound and stronger mix as demand shifted toward higher-value products used in data centers. Samsung said its memory business delivered all-time highs for quarterly revenue and operating profit, reflecting both rising market prices and increasing shipments of advanced memory products.
A central catalyst has been high-bandwidth memory, or HBM, a specialized form of memory that works alongside AI accelerators in modern data-center systems. As AI workloads scale, customers are prioritizing performance and power efficiency, and that is pulling a growing share of global memory output toward server platforms. The result is a two-speed market: data-center buyers are willing to pay up to secure supply, while consumer-device categories compete for a smaller share of available output.
That allocation shift has tightened conditions across the broader memory ecosystem. As suppliers push capacity toward server and AI demand, availability for conventional chips used in personal computers and smartphones can become constrained, which supports higher pricing and lifts margins for producers like Samsung.
Looking into early 2026, Samsung said its chip group expects AI and server demand to keep rising and plans to prioritize profitability by focusing on high-performance products. The company also indicated that it intends to increase memory investment this year after keeping 2025 spending relatively conservative.
Investment posture is changing
Samsung said capital expenditure declined for full-year 2025 as it maintained a conservative approach, but it signaled a more active stance ahead as it builds capacity and capability in the most profitable segments of the cycle. In practice, that usually means expanding output for advanced memory, improving yields, and moving faster on next-generation process technology and packaging that support AI workloads.
Management also flagged a tension that is emerging across the company: higher memory prices help the semiconductor business, but they can raise input costs for smartphones and displays, creating margin pressure elsewhere if consumer pricing cannot move in step.
Mobile results soften
Samsung’s mobile division posted weaker profitability in the quarter. Operating profit fell to 1.9 trillion won, down 9.5% from a year earlier and sharply lower than the previous quarter. Samsung attributed the slowdown to fading launch momentum from earlier handset releases and intense competition, which limited pricing power.
For the first quarter of 2026, Samsung said it plans to push harder on AI-focused smartphone features, including so-called agentic experiences, as it prepares its next flagship launch cycle. The company also said it will try to offset higher component costs through tighter supplier coordination and supply-chain optimization, an increasingly important lever as memory, processors, and other key components become more expensive.
Displays improve
Samsung’s display business delivered a better quarter, with profit more than doubling to about 2 trillion won, supported by solid demand for smartphone panels. That performance provides a partial counterweight to the softer mobile profit trend, though the segment remains sensitive to handset-cycle timing and shifts in customer mix.
What the quarter signals
Samsung’s record profit highlights how demand for AI infrastructure is reshaping the memory market. Tight supply, higher prices, and strong data-center spending are lifting chip earnings, but the same forces are raising costs for consumer electronics. The next question for investors is how long the pricing strength lasts, and whether Samsung can translate the cycle into durable gains by scaling its most advanced memory products while managing cost pressure across smartphones and displays.