How is Nikkei 225 weighted?

Price-weighted, similar to the Dow Jones Industrial Average.

Nikkei Inc., the Japanese financial news publisher.

When is it rebalanced?

Annually, in October, with periodic extraordinary changes.

Nikkei 225 API — Nikkei Stock Average 225 Data for AI Agents

About the Nikkei 225

The Nikkei 225 is a price-weighted index of 225 large, publicly traded Japanese companies on the Tokyo Stock Exchange Prime Market. It is Japan's most widely followed benchmark and has a history going back to 1950.

Notable Nikkei 225 Listings

Quotes for 6 of the largest Nikkei 225 listings, in local currency.

#	Ticker	Name	Sector	Price	24h	52-week range	P/E	Fwd P/E	Beta	Employees	Volume	Market Cap
1	7203	Toyota Motor	Consumer Cyclical	2,910.50	▼ 0.21%	2,686.00 4,000.00	8.3	9.0	0.38	367,990	17.8M	34.47T
2	6758	Sony Group	Technology	3,814.00	▲ 3.22%	3,043.00 4,776.00	20.5	20.8	0.81	94,900	15.7M	22.27T
3	9984	SoftBank Group	Communication Services	5,803.00	▼ 4.21%	3,365.00 9,074.00	6.8	19.7	0.93	73,677	72.3M	33.07T
4	6861	Keyence	Technology	80,540.00	▲ 0.89%	51,510.00 87,920.00	43.9	43.1	1.02	12,784	440K	19.53T
5	9983	Fast Retailing	Consumer Cyclical	71,780.00	▼ 4.38%	50,810.00 88,690.00	40.7	52.4	0.50	—	2.1M	22.03T
6	6098	Recruit Holdings	Communication Services	17,755.00	▲ 2.81%	6,040.00 18,215.00	42.1	58.7	0.99	45,586	4.0M	24.66T

Reference quotes for well-known listings. These companies are not yet in the API's covered set.

API coverage for the Nikkei 225

Fetch the index membership list or query any constituent's data directly.

Index Members

List every constituent currently in the index.

GET /api/v1/indices/Nikkei225

Constituent Financials

Full income statement, balance sheet, and cash flow per company.

GET /api/v1/companies/{ticker}/financials

Start querying Nikkei 225 data

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Frequently Asked Questions

How is Nikkei 225 weighted?: Price-weighted, similar to the Dow Jones Industrial Average.
Who publishes it?: Nikkei Inc., the Japanese financial news publisher.
When is it rebalanced?: Annually, in October, with periodic extraordinary changes.

Nikkei 225 — Nikkei Stock Average 225