The memory-chip race is getting fiercer by the day. Micron Technology looks to be holding its own against the growing presence of Chinese suppliers but it's a trickier time for SK Hynix.

The big story in memory over the past year has been the growing presence of China. The latest figures bear that out-China's CXMT took 10% market share in dynamic random-access memory (DRAM), the short-term memory used in applications running on computers in the second quarter of 2026, according to the latest figures from Counterpoint Research. That's up from 8% in the previous quarter and 4% in the same period in 2025.

The figures are updated from Counterpoint's previous estimates for the second quarter which had originally put CXMT at 7% of DRAM market share.

It's a similar picture in NAND flash memory which is used for longer term storage, where China's Yangtze Memory Technologies, or YMTC, took 14% of the market by quarterly revenue share. That was broadly stable from the previous quarter but up from 9% a year ago.

Micron is bearing up pretty well. The U.S. memory-chip company increased its DRAM market share to 24% in the second quarter from 22% in the first quarter, and its NAND market share to 15% from 13%, according to Counterpoint.

So who's losing out? South Korea's SK Hynix looks to be feeling the pressure as its DRAM market share dropped to 25% from 29% in the preceding quarter. In NAND, Sandisk's market share fell to 11% from 13%.

Micron shares were down 0.6% in Wednesday's premarket. American depositary receipts of SK Hynix were falling 2.8% and Sandisk shares were slipping 0.7%.

Of course market-share figures don't tell the full story. For one thing, the memory-chip market is growing so fast that there is still massive revenue and profit growth for all the participants even with a dip in share. The DRAM market grew 57% in the second quarter from the prior quarter and NAND grew 70%, Counterpoint said.

Another thing to bear in mind is companies are shifting their resources. SK Hynix for example has redirected some of its manufacturing toward high-bandwidth memory, the specialized form of DRAM used in artificial-intelligence hardware, sacrificing some of the broader market for a stronger position in the most valuable future market.

Still, the overall trends are clear-memory revenue are growing enormously but the Chinese players are coming for a bigger slice of the pie.