Nikkei 225 · October 1, 2026
Micron's results lift Tokyo
+3.30%
single-day change vs previous close
What happened that day?
- 1 October 2026 — the Nikkei 225 rose 3.30% to close at 68,956.72, its highest close since 17 August
- Micron had reported its fiscal fourth quarter in the United States the night before. The results were a record, and the guidance for the next quarter came in well above what the market expected
- Tokyo took it at the open. The release came after the US close, so the reaction landed on this session
- The gains were concentrated in chips — test equipment, production equipment, memory and electronic components supplied most of the index's move
- Micron's numbers mattered because memory sits at the front of AI demand. If memory sells, the equipment and components behind it sell too
- Three months earlier the same chain had run in reverse. In July these same names collapsed on doubts that AI capital spending would ever come back as revenue
- From the late-June record to the late-July low the index had fallen 15.11%. This close was still short of that high
Sources
Every figure on this page is recomputed from the original daily closing prices and checked against them at build time. The account of what happened is put together from the public record; where a specific source was consulted it is listed above.