Micron Technology reported fiscal Q3 2026 earnings on June 24 that shattered records: revenue of $41.46 billion (up 345% year-over-year from $9.30 billion) and gross margin of 84.9%—the highest margin any US tech company has achieved, surpassing Nvidia's 75% and Meta's 82%. Net income reached $28.24 billion, up over 100% from the prior quarter. The stock surged 14% in extended trading and has climbed over 700% in the past year to a market cap well past $1 trillion.
The driving force is High-Bandwidth Memory (HBM)—the specialized DRAM stacked vertically and mounted directly beside every AI processor. Micron disclosed that it has locked in supply through 16 multi-year Strategic Customer Agreements (SCAs) representing approximately $100 billion in minimum contracted revenue and $22 billion in upfront customer cash. These take-or-pay deals include pricing floors structured to guarantee gross margins above any level Micron has historically achieved, fundamentally breaking the traditional DRAM commodity cycle of boom-bust-recovery.
CEO Sanjay Mehrotra confirmed on the earnings call that Micron's entire calendar 2026 HBM output is already committed. HBM4 volume production began in Q1 2026 for Nvidia's Vera Rubin platform with yield ramps tracking ahead of prior HBM generations. Only three companies produce HBM at commercial scale globally: SK Hynix (61% of market in 2025), Samsung (17%), and Micron (21%). This supply bottleneck is spilling over into conventional DRAM—spot prices surged 52% since January—squeezing consumer device budgets.
For infrastructure decision-makers, Micron's Q3 represents a structural shift in how the AI semiconductor supply chain operates. The margin expansion confirms that AI infrastructure costs are now permanently embedded in consumer electronics pricing; Dell's CFO noted spot DRAM prices are up 5.5x in six months. Micron's long-term contracts signal that memory suppliers are locking in AI demand with pricing power that persists through 2027, even if GPU demand normalizes. For budget planning, expect memory to remain elevated across PCs, servers, and consumer devices for at least 18 months.