⚠ Capacity Committed at the Peak Arrives in the TroughHigh threat

Kioxia Holdings (285A) — threat to the moat

470 billion yen a year was decided at a 75 percent operating margin, by a company whose competitors were all doing the same arithmetic on the same day.

The oldest mistake in memory is being made again, by everybody, at the same time, for the same reason.

Quarterly results and guidance (¥tn)¥1.77tnRevenue, June 2026¥2.39tnRevenue, Sept guided¥1.33tnOp. income, June 2026¥1.9tnOp. income, Sept guidedKioxia Q1 FY2026 results (June 2026 quarter); non-GAAP operating income
Capacity approved at these margins arrives years later, whatever the price is then.

Kioxia has committed to roughly ¥470 billion of annual capital spending across three years1, set out at an investor day in June 2026 when its operating margin was near 75%2. Every other producer is expanding on the same logic. Capacity ordered during a shortage arrives during a surplus, because the decisions are taken simultaneously and the lead times are identical.

For Kioxia the exposure is sharper than for a diversified maker, because there is no second product to absorb the depreciation when the output has nowhere profitable to go. Depreciation on a fab does not care what flash costs.

Two things are genuinely different this time. The demand driver is AI infrastructure rather than a consumer cycle, and Kioxia's own reading has demand exceeding supply into calendar 20273. And a shared capital structure means Kioxia only carries half of the Flash Ventures increment.

The number to watch is industry bit supply growth against demand growth. When supply growth wins, the price falls, and it does not much matter whose name is on the building.

References
  1. ReportedCapital expenditure of roughly ¥470 billion a year is planned across three years.
    Kioxia Holdings, first-quarter FY2026 results for the three months to 30 June 2026, as reported from the company's results presentation and earnings call — revenue ¥1,767.1bn, up 76.2% sequentially and 415.5% year on year; non-GAAP operating profit ¥1,326.2bn at a 75% margin; non-GAAP net income ¥887.0bn; non-GAAP EBITDA ¥1,402.1bn; adjusted non-GAAP gross profit ¥1,405.5bn, an 80% margin. Average selling prices rose about 70% with bit shipments growing a low single-digit percentage; eighth-generation BiCS FLASH exceeded 50% of total output. SSD & Storage ¥1,174.7bn, 66% of sales, with data centre and enterprise more than 60% of that and PC-related drives slightly below 40%; Smart Devices ¥525.7bn; Other ¥66.7bn. Operating cash flow ¥866.3bn, days inventory outstanding 102. Cash ¥791.0bn from ¥470.7bn, ¥407.5bn of senior loans repaid, a net cash position of ¥186.7bn against a net debt-to-equity ratio of 120% a year earlier, and an equity ratio of 51%. Guidance for the September quarter: revenue ¥2,390.0bn and non-GAAP operating profit ¥1,900.0bn, again roughly 70% of the growth from price. Capital expenditure of about ¥470bn a year is planned across the three years from FY2026, with roughly ¥200bn of research spending for the year and concentrated investment in the tenth and eleventh BiCS FLASH generations; the company targets roughly 50% long-term agreement coverage for calendar 2028. A buyback of up to 30 million shares (5.5% of those outstanding) for up to ¥800.0bn was authorised for 3 August to 30 October 2026, alongside a three-for-one share split with a 30 September 2026 record date. Calendar 2026 NAND bit growth is put in the high teens, with demand expected to exceed supply in 2027. — quarter to 30 June 2026 · publ. 2026-08-03 · source ↗
  2. ReportedThe plan was set out in June 2026, at a non-GAAP operating margin of 75%.
    Kioxia Holdings — 'Kioxia Announces Growth Strategy for the AI Inference Era at Investor Day', 2 June 2026. The company targets data centre and enterprise sales above 60% of the total over the medium to long term, with annual capital expenditure of approximately ¥470 billion and research and development of ¥230 billion across a three-year plan. The product portfolio comprises the CM Series — high-bandwidth SSDs with TLC flash optimised for key-value cache storage and supporting NVIDIA's CMX platform; the GP Series — high-performance SSDs with XL-FLASH exceeding 100 million IOPS and compatible with NVIDIA Storage-Next for retrieval-augmented generation servers; and the LC Series of high-capacity SSDs including a 245-terabyte model. Tenth-generation BiCS FLASH sample shipments were to begin in summer 2026. The company is securing multi-year long-term agreements to improve revenue visibility and the quality of profit, and will evaluate shareholder returns on the basis of cumulative free cash flow in excess of requirements over multiple years. — medium-term plan · publ. 2026-06-02 · source ↗
  3. ReportedKioxia expects NAND demand to exceed supply in calendar 2027.
    Kioxia Holdings, first-quarter FY2026 results for the three months to 30 June 2026, as reported from the company's results presentation and earnings call — revenue ¥1,767.1bn, up 76.2% sequentially and 415.5% year on year; non-GAAP operating profit ¥1,326.2bn at a 75% margin; non-GAAP net income ¥887.0bn; non-GAAP EBITDA ¥1,402.1bn; adjusted non-GAAP gross profit ¥1,405.5bn, an 80% margin. Average selling prices rose about 70% with bit shipments growing a low single-digit percentage; eighth-generation BiCS FLASH exceeded 50% of total output. SSD & Storage ¥1,174.7bn, 66% of sales, with data centre and enterprise more than 60% of that and PC-related drives slightly below 40%; Smart Devices ¥525.7bn; Other ¥66.7bn. Operating cash flow ¥866.3bn, days inventory outstanding 102. Cash ¥791.0bn from ¥470.7bn, ¥407.5bn of senior loans repaid, a net cash position of ¥186.7bn against a net debt-to-equity ratio of 120% a year earlier, and an equity ratio of 51%. Guidance for the September quarter: revenue ¥2,390.0bn and non-GAAP operating profit ¥1,900.0bn, again roughly 70% of the growth from price. Capital expenditure of about ¥470bn a year is planned across the three years from FY2026, with roughly ¥200bn of research spending for the year and concentrated investment in the tenth and eleventh BiCS FLASH generations; the company targets roughly 50% long-term agreement coverage for calendar 2028. A buyback of up to 30 million shares (5.5% of those outstanding) for up to ¥800.0bn was authorised for 3 August to 30 October 2026, alongside a three-for-one share split with a 30 September 2026 record date. Calendar 2026 NAND bit growth is put in the high teens, with demand expected to exceed supply in 2027. — quarter to 30 June 2026 · publ. 2026-08-03 · source ↗
Sources
Generated September 23, 2026