SanDisk Stock Jumps 10% on New AI Memory Milestone With SK Hynix Ahead of Earnings

SanDisk stock jumped 10.84% on Tuesday following a new AI memory milestone with SK Hynix. The companies advanced their ongoing collaboration by releasing the first industry specification for High Bandwidth Flash (HBF) technology.

SanDisk also presents a keynote on AI memory today at the Future of Memory and Storage (FMS) Conference, just hours before its earnings call. Google and Tenstorrent joined the HBF consortium during the standardization process, adding credibility to the new standard.

A New Memory Tier for AI Chips The Open Compute Project (OCP), an industry group that builds open hardware standards, published the HBF specification this week. The standard gives chip designers a shared framework for using HBF in AI accelerators.

It fills a gap left by High Bandwidth Memory (HBM), which is fast but capacity-constrained. In contrast, solid-state drives hold more data at slower speeds. The specification supports NAND stacking up to 512GB per die stack.