LowV Technology Geopolitics & AI16 October 2026, Friday
Kioxia sheds two-thirds of its peak value as Chinese rivals close in
The market value of Japanese memory maker Kioxia has fallen to a third of its peak of roughly four months ago. Nikkei Asia on 16 October attributed the slide to rising interest rates and the approach of Chinese rivals. The company reports April–September results on 30 October.
According to Nikkei Asia's report of 16 October, two pressures are compounding each other. First, higher interest rates threaten the debt-funded growth model of the data centres that buy Kioxia's chips. Second, Chinese memory makers are closing the gap in both technology and volume. The report also notes that a record rise in profit is expected for the April–September period Kioxia reports on 30 October. The loss of value reflects doubts about how long the expected gains can last, not about the profits themselves.
Shipment data show the scale of the Chinese challenge. Counterpoint Research figures cited by Club386 on 12 August cover NAND flash, the chip used for persistent storage. In the second quarter of 2026, China's YMTC tied with Kioxia for third place in shipments, each with a 14% share. Samsung held 25%, SK Hynix 22%, Micron 13% and Sandisk 11%. YMTC's shipments rose 22% year on year, but its focus on consumer products leaves it fifth by revenue. Kioxia's peak and current market value in yen could not be independently verified.
Talay assessment
Bottom line
Kioxia's slide prices the duration of the memory boom rather than its profits: the share has fallen to a third of its peak even as earnings are expected to rise. YMTC drawing level with Kioxia in NAND shipments shows that China is eating into Japan's share in persistent storage, not just in DRAM. The most likely path is for valuations to stay sensitive to rate and China competition headlines even if the 30 October results come in strong.
Likely effects
- Japanese memory industryNegative1–6 months
Kioxia's shipment share now matches a Chinese rival's; if price competition spreads to enterprise products, margin pressure will rise.
- Data centre investmentNegative1–6 months
As rates rise, memory orders from debt-financed data centres may slow, making memory demand more sensitive to interest rates.
- China's memory substitutionUncertain6 months+
YMTC lifted shipments 22% year on year, gaining share at home and abroad; capacity is growing despite export controls.
Possibilities, ranked
- 1Strong profits, fragile valuation55%
The 30 October results are strong, but the valuation stays volatile on rate and China competition headlines.
Watch: Kioxia's April–September results on 30 October and its October–March guidance
- 2China keeps gaining share30%
YMTC moves into enterprise SSDs and takes third place outright, while Japan's share slips.
Watch: Counterpoint's NAND shipment shares for the third quarter of 2026
- 3Demand worries fade15%
Rate expectations soften and data centre orders stay strong, recouping part of the lost value.
Watch: Capital spending announcements from major cloud companies in late October
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Market value vs peak▼ 1/3
- YMTC NAND shipment share▼ 14%