Nikkei 225

Nikkei 225
Name	Nikkei 225
Foundation	07 September 1950
Operator	Nihon Keizai Shimbun
Exchanges	Tokyo Stock Exchange
Constituents	225
Cap	Price-weighted
Website	https://indexes.nikkei.co.jp/en/nkave

Nikkei 225. The Nikkei 225 is a premier stock market index for the Tokyo Stock Exchange, serving as a key benchmark for the performance of Japan's blue-chip companies. Published by the Nihon Keizai Shimbun newspaper since 1950, it tracks 225 top-tier corporations listed in the First Section of the exchange. Often called the "Nikkei," it is one of the most widely quoted Asian market indices alongside the TOPIX.

Overview

The index functions as a vital barometer for the Japanese economy and investor sentiment in the Asia-Pacific region. Its composition spans major industrial sectors, including technology, manufacturing, and finance, featuring globally recognized constituents like Toyota, Sony, and Mitsubishi UFJ Financial Group. Unlike many major indices that use market capitalization weighting, it employs a unique price-weighted average methodology, similar to the Dow Jones Industrial Average. This calculation method means higher-priced stocks exert a more significant influence on its movements, a characteristic that distinguishes it from the TOPIX.

History

The index was originally calculated by the Nihon Keizai Shimbun starting September 7, 1950, with a retroactive base date of May 16, 1949. It gained international prominence during the Japanese asset price bubble of the late 1980s, reaching its all-time intraday high of 38,957.44 on December 29, 1989. The subsequent collapse of the bubble led to the Lost Decades, a prolonged period of economic stagnation. Major events like the 1995 Great Hanshin earthquake, the 2008 financial crisis, and the 2011 Tōhoku earthquake and tsunami have caused significant volatility. More recently, the COVID-19 pandemic and policies from the Bank of Japan under governors like Haruhiko Kuroda have heavily influenced its trajectory.

Composition and calculation

The selection of the 225 constituents is reviewed annually by the Nihon Keizai Shimbun, with changes made to maintain sector representation. The index covers diverse industries such as electronics, automotive, pharmaceuticals, and financial services. The calculation is a price-weighted average, where the sum of the component stock prices is divided by a divisor that adjusts for stock splits, bonus issues, and constituent changes to ensure continuity. This divisor is maintained by the Nikkei Group. Notable companies frequently included are Fast Retailing, Keyence, and SoftBank Group.

Performance and milestones

Following its 1989 peak, the index experienced a severe bear market, bottoming near 7,000 in April 2003. It crossed the 20,000 mark again in 2015, partly driven by the economic policies of Shinzo Abe known as Abenomics. Under the aggressive monetary easing of the Bank of Japan, it surpassed 30,000 in 2021 for the first time in over three decades. The index's performance is often compared to other global benchmarks like the S&P 500, FTSE 100, and Hang Seng Index. Record closes are closely watched by institutions such as Nomura Securities and BlackRock.

Economic significance

As a leading indicator, it reflects the health of major Japanese exporters and the broader economy of Japan. Movements in the index impact global investment flows, pension funds like the Government Pension Investment Fund, and the strategies of the Ministry of Finance. It is a foundational asset for numerous financial products, including exchange-traded funds listed on exchanges worldwide, futures contracts traded on the Osaka Exchange, and options. Analysts from Goldman Sachs, Morgan Stanley, and Mizuho Financial Group frequently cite its trends in global market reports.

Criticisms and limitations

The primary criticism centers on its price-weighted methodology, which can distort the index's representation of the overall market compared to float-adjusted indices like the TOPIX. This allows a single high-priced stock, such as Fast Retailing, to have an outsized impact. Furthermore, with only 225 constituents, it covers a smaller portion of the Tokyo Stock Exchange than broader indices. Some analysts argue it is less reflective of the modern Japanese economy, which includes a growing service sector, and can be more volatile due to its calculation method. These limitations are often discussed in research by International Monetary Fund economists and in reports from Standard & Poor's.

Category:Stock market indices Category:Economy of Japan Category:1950 establishments in Japan