Behind this week’s violent selloff in semiconductor stocks lies a structural shift that has been building all year: a global crunch in computer memory, driven by artificial intelligence, that has sent prices soaring and is now reaching into the cost of ordinary PCs and smartphones.
The mechanics are straightforward. The three companies that dominate memory production — Samsung, SK Hynix and Micron — have been diverting the bulk of their manufacturing toward high-bandwidth memory, or HBM, a premium form of DRAM stacked for the enormous data throughput that AI accelerators require. By some estimates the three have shifted as much as 93 percent of their combined capacity toward HBM and AI-grade output, starving the market for conventional chips.
Because the same production lines make both products, the diversion has throttled supply of standard DRAM used in servers, laptops and consumer devices. DRAM prices surged roughly 90 percent in the first quarter of 2026 compared with late 2025, and Samsung and SK Hynix reportedly raised server-DRAM prices to major cloud clients including Microsoft and Google by 60 to 70 percent.
The economics explain the stampede. A single HBM3E module can sell for roughly $60 to $100, against perhaps $5 to $10 for a comparable amount of conventional DDR5 memory. Faced with that gulf, manufacturers have every incentive to allocate scarce wafers to AI customers — and AI customers, racing to build data centers, are willing to reserve supply years in advance.
For the rest of the technology industry, the squeeze is painful. Analysts have warned the shortage could shrink the PC market by up to 9 percent and the smartphone market by around 5 percent in 2026, as device makers absorb higher component costs or pass them to consumers. Apple has already signaled price increases on its next iPhones, attributing part of the rise to the memory crunch.
Relief is not imminent. SK Hynix has reportedly booked its entire memory-chip capacity through the end of 2026, and significant new fab capacity in the United States and Asia is not expected to come online until 2028. That timeline means the period of tight supply and elevated prices could persist through 2027, with Samsung and SK Hynix themselves warning that AI-driven shortages may last that long or beyond.
The crunch reframes how investors should read both the rally and its reversals. The memory makers at the center of June 23’s market crash are not riding a speculative bubble so much as a genuine supply-demand squeeze — but that same dependence on a single, capacity-constrained AI boom is exactly what makes their share prices, and the indexes they dominate, so volatile when sentiment turns.