Shares of CXMT surged 3.87% to CNY 55.54 after China's largest memory chipmaker announced at the World Manufacturing Convention in Hefei that its newest manufacturing platform has entered mass production — a milestone that signals real output gains but leaves open questions about how far volume alone can carry the stock.
China's Memory Champion Doubles Its Market Share in a Year
CXMT's global DRAM market share has more than doubled from 4% a year ago to 10%, according to Counterpoint Research.
That means Samsung, SK Hynix, and Micron's combined share has dipped below 90% for the first time in over a decade. For shareholders, the trajectory is clear: CXMT is converting manufacturing scale into revenue at a pace that justified its $8.6 billion IPO on Shanghai's STAR Market in July 2026.
First-half revenue hit CNY 150 billion with a 78% operating margin — up 224% half-on-half and far exceeding pre-IPO guidance.
More Chips Per Wafer Means Lower Costs — If They Actually Work
CXMT shrank key circuit features to 11.95 nanometers using a technique that splits one manufacturing layer into multiple steps, letting it fit at least 50% more raw chip units on each silicon wafer than the prior generation.
But the real test is yield — how many of those chips survive manufacturing without defects — since more process steps raise the odds of errors.
No independent benchmarking has confirmed the company's yield claims.
A $3 Billion Tencent Deal Anchors Demand, But the Highest-Margin Chips Remain Out of Reach
CXMT has secured a multi-year supply agreement with Tencent valued at roughly $3 billion , giving it a blue-chip domestic customer. Yet the company cannot yet serve the highest-profit segment of the memory market — high-bandwidth memory used in AI accelerators — where Samsung and SK Hynix have built a commanding near-term lead.
CXMT's 10% share is overwhelmingly concentrated in the Chinese smartphone supply chain , a segment the big three have de-prioritized.
Capacity Is Ramping Fast, But Export Controls Loom
CXMT plans to push monthly wafer output to roughly 375,000 by year-end, up from 300,000 today , using proceeds from its IPO. Morningstar analysts warn that lack of access to advanced lithography equipment effectively puts a hard ceiling on CXMT's technological progress , meaning the company must squeeze ever-more out of older tooling. At a CNY 3.77 trillion market cap, investors are betting that volume growth and cost discipline in commodity memory will be enough — even without the premium chips where the industry's fattest profits sit.