Micron (MU.US) officially announces HBM4 mass production, seizing the early opportunity by partnering with NVIDIA (NVDA.US) on the Veo Rubin platform.

Against the backdrop of a sustained surge in AI compute demand, Nvidia’s GTC2026 conference has again become a bellwether for the global semiconductor industry, while Micron Technology (MU.US)’s remarks at this event undoubtedly inject new variables into competition in the high-performance storage market. Micron not only officially confirmed on-site that Nvidia’s next-generation Vera Rubin AI platform will enter mass production of high-performance HBM4 memory, but also, through the concentrated rollout of its full-stack storage solutions, demonstrated the indispensable ecosystem position it holds within the compute supply chain.

Micron’s mass-produced 36GB 12-Hi HBM4 memory not only delivers an astonishing bandwidth of more than 2.8TB/s, but also improves energy-efficiency ratio by over 20% compared with the previous generation products—critical for addressing the “power consumption wall” problem in large-scale model training. What the market should pay close attention to is that Micron management stated clearly on-site that the company’s full-year HBM production capacity for 2026 is already basically sold out, and that the vast majority of orders have been signed with legally binding long-term purchase agreements.

This highly order-locked posture signals that the HBM market has completely shifted from traditional cyclical spot trading to a deeply bonded model built on customized technology collaboration. As the only major HBM supplier based in the United States, Micron’s strategic premium is accelerating its release.

To maintain a leading position in technical generation gaps, Micron has not stopped at the mass production of 12-layer stacking. The company announced that it has begun delivering more disruptive 48GB 16-Hi HBM4 samples to core customers; single-chip capacity is up 33% versus the current mass-produced version. The goal is to provide stronger memory redundancy for subsequent upgrade versions of the Vera Rubin platform. Meanwhile, Micron is also pushing forward the R&D of the next-generation HBM4E, which is expected to enter the sampling stage in the second half of 2026.

In addition to continuing to press its advantage in the memory space, Micron’s system-level storage coordination capabilities showcased during GTC are also not to be underestimated. The industry’s first PCIe 6.0 data center SSD in the mass production stage (Micron 9650) sets a new industry record with sequential read speeds of 28GB/s. In combination with the 192GB SOCAMM2 memory module designed specifically for Vera CPU, Micron is building a complete storage closed loop that spans GPU memory, system memory, and high-speed cache.

This full-stack supply capability not only improves the overall operating efficiency of large-scale systems such as Nvidia NVL72, but also speeds up inference response for Agentic AI by enhancing the intelligence of AI systems—giving Micron a broader platform in the high-performance computing market.

From the perspective of industry competitive dynamics, Micron’s high-profile official announcement of mass production carries major strategic significance. Because in early 2026, market chatter suggested that Micron was behind SK hynix and Samsung in HBM4 R&D progress, and even reports claimed that its share would be taken by major competitors. However, Micron countered these doubts with actual mass-production shipments, demonstrating that it has returned to the industry’s frontline tier in advanced process technology and packaging methods.

Analysts noted that as HBM4 contributes meaningful revenue in the 2026 fiscal year, Micron’s gross margin and profitability are expected to be further restored. At present, the game among the world’s three major storage giants in the HBM4 arena has entered an intensively competitive stage, while Micron is the first to break through on Nvidia’s Vera Rubin platform—giving it the first-mover advantage in future market-share mix competition.

“The next era of artificial intelligence will be defined by a deeply integrated platform that is developed through joint engineering innovations across the entire ecosystem,” emphasized Sumit Sadananda, Executive Vice President and Chief Business Officer at Micron Technology. “Our close collaboration with Nvidia ensures that compute and memory achieve coordinated, scalable expansion from the very beginning of the design.”

He further added: “With large-scale mass production of HBM4 36GB 12H, the industry’s first SOCAMM2, and Gen6 SSD, Micron is building the core infrastructure to unlock the full potential of next-generation artificial intelligence.”

As of the close on Tuesday, Micron Technology’s stock price rose 4.5%. In the subsequent after-hours trading, the uptrend continued, rising another 2.21% to finish at $471.97.