Tankan
The Bank of Japan's quarterly survey of business conditions.
The Bank of Japan drew on its September 2026 Tankan in the Outlook Report of 30 October to follow hyperscaler orders along the supply chain, from the large power and cooling equipment groups to the small firms that supply them.
Last refreshed: 6 November 2026 · Appears in 1 active topic
What does the Tankan say about Japan's AI-driven demand?
Timeline for Tankan
Mentioned in: Bank of Japan flags AI demand as a risk
AI: Jobs, Power & MoneyBackground
The Tankan, formally the Short-term Economic Survey of Enterprises in Japan, is the Bank of Japan's quarterly survey of business conditions. It began in 1957 and is conducted in March, June, September and December, with results published in early April, July and October and in mid-December.
Its Headline measure is a diffusion index: the share of firms reporting good conditions minus the share reporting poor ones. The index for large manufacturers is the most quoted figure, and markets read it for signals on the bank's next rate move.
Because it reaches smaller firms as well as large ones, the survey lets the bank follow demand down supply chains. In October 2026 it showed data-centre orders spreading beyond the big equipment makers that supply the largest cloud operators.
What is the Tankan survey?
When is the Tankan released?
How is the Tankan index calculated?
When did the Tankan survey start?
Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 6 November 2026. Editorial standards.