Memory Chip Stocks Drop 19% as UBS Argues AI Demand Leaves Sector Undervalued

Analysts maintain buy ratings across memory coverage, citing expanding server DDR5 orders, Nvidia module demand, and premature fears over Chinese competition.

By The Company WireOctober 17, 2026 at 4:45 PM UTC3 min read

Memory semiconductor stocks have fallen 19% from their September peaks to approach July lows, creating what UBS analysts characterize as an attractive valuation disconnect driven by durable demand for artificial intelligence hardware, according to a report by Yahoo Finance (https://finance.yahoo.com/markets/stocks/articles/memory-stocks-wall-worry-justified-164525014.html?.tsrc=rss).

The investment bank maintained buy ratings across all companies in its memory coverage universe and designated Samsung Electronics as its top sector pick. Excluding Chinese manufacturer ChangXin Memory Technologies (CXMT), UBS projects an average estimated free cash flow yield of 29% across its coverage group for 2027 through 2030.

While sentiment around high-bandwidth memory (HBM) used in specialized AI accelerators has shown recent volatility, UBS stated that expanding demand for standard server memory and solid-state drives is stabilizing fundamentals. Orders for server DDR5 memory are projected to rise into 2027 to support AI inference deployments, alongside strengthening demand for memory modules designed for Nvidia system-on-chip architectures, known as SOCAMM.

UBS forecasts that global HBM shipments will expand 49% year-on-year in 2027, driven in part by producers shifting manufacturing capacity between standard DRAM and specialized memory stacks to manage competing workloads. Analysts also downplayed immediate competition from CXMT's move toward advanced DRAM nodes, stating the Chinese producer's near-term output is likely confined to research and sample fabrication rather than broad commercial supply.

On supply risks, the bank noted that Samsung could expand DRAM capacity by more than 150,000 wafer starts per month in 2028, though analysts do not expect that volume to materially impact market equilibrium until late that year. In the interim, UBS suggested the recent valuation reset could prompt memory producers to accelerate shareholder return programs.