Nikkei 225 · July 31, 2026
The AI worry lifts
+4.03%
single-day change vs previous close
What happened that day?
- On 31 July 2026 the Nikkei 225 rose 4.03%
- Earnings from the largest US technology companies contradicted the fear that AI capital spending was about to be cut
- In Japan the chip equipment makers moved first — they were the ones the order-book worry had hit hardest
- The same day the KOSPI posted its largest gain on record. The size of the reaction tracked how much of each index sits in chips
- The low of the slide that began in late June had come two days earlier
- That slide was 15.11% from the peak
- One day's bounce was not enough to get the old high back
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 written from the sources listed above.