$MU has regained market share in HBM4

According to SemiAnalysis, Micron has re-entered the market as an HBM4 supplier for Nvidia Rubin. Our previous view was based on the assumption that Nvidia had not ordered HBM4 from Micron, as Nvidia initially relied on SK Hynix as its primary HBM4 supplier, followed by Samsung
However, due to issues with Hynix’s HBM4, Nvidia later increased its HBM4 orders from Micron to broaden supply and help ease the HBM4 constraints affecting Rubin production growth
Micron then increased its HBM4 wafer production and began fulfilling Nvidia’s orders. Still, as we have written, no single supplier currently has HBM4 that can meet all of Nvidia’s needs, and that also applies to Micron’s HBM4
Engineering solutions or performance compromises are still being explored, and the exact supplier share allocation remains unclear. We at SemiAnalysis have revised our estimate of Micron’s HBM4 share in Nvidia Rubin upward to around 10%, reflecting Micron’s re-entry into the qualification competition