Tokyo Stock Exchange

The Tokyo Stock Exchange, commonly abbreviated as TSE or Tōshō, is Japan's principal securities marketplace and one of the world's major stock exchanges. It is headquartered in the Nihonbashi-Kabutochō financial district of Tokyo and provides regulated markets for listed Japanese and international companies, as well as venues connected with bonds, exchange-traded products and derivatives. The exchange is operated by Tokyo Stock Exchange, Inc., a wholly owned subsidiary of Japan Exchange Group (JPX), the listed holding company created through the integration of the former Tokyo Stock Exchange Group and Osaka Securities Exchange. The institution originated on May 15, 1878, when the Tokyo Kabushiki Torihikijo was established under the direction of Finance Minister Ōkuma Shigenobu, with support from industrialist and financial modernizer Shibusawa Eiichi. Trading began on June 1 of that year. During the Second World War, Tokyo's exchange was consolidated with eleven regional exchanges into the Japan Securities Exchange. That organization ceased operations in August 1945. The postwar Tokyo Stock Exchange reopened on May 16, 1949, under the new Securities Exchange Act and became the central venue for Japan's rapidly developing capital markets. The exchange's scale expanded dramatically during Japan's high-growth and asset-price bubble periods. Between 1983 and 1990, the market's global importance increased to the point that the TSE represented more than half of worldwide equity market capitalization at its peak. The collapse of Japan's bubble economy then caused a severe decline in share prices, trading value and relative global ranking, but the exchange remained the country's dominant public-equity marketplace. TSE market structure has changed repeatedly. Earlier divisions included the First and Second sections, Mothers for emerging and high-growth companies, JASDAQ, and TOKYO PRO Market. On April 4, 2022, these arrangements were reorganized into Prime, Standard and Growth markets. Prime is intended primarily for companies with substantial liquidity and stronger international investor access; Standard serves established companies with broader eligibility; and Growth is designed for companies with high growth potential but less mature operating histories. TOKYO PRO Market remains a professional-investor-focused venue. Technology has been central to the exchange's modern development. The physical trading floor was closed in April 1999 as the TSE completed its transition to fully electronic trading. The TSE Arrows visitor and market-information facility opened in 2000, and the Arrowhead trading system was introduced in 2010. The exchange has also experienced serious technology and operational incidents, including a 2005 system failure, an order-entry disruption in 2018 and a full-day suspension on October 1, 2020. These events reinforced the importance of resilience, capacity planning, controls for erroneous orders and reliable backup systems. Today, the Tokyo Stock Exchange's importance extends beyond order execution. Its listing rules, disclosure requirements, governance expectations, market data and benchmark-linked activity influence corporate finance and investor behavior throughout Japan. Major market indicators associated with securities traded on the exchange include TOPIX and the Nikkei 225, although the latter is selected and maintained by Nikkei rather than by the exchange itself. Through JPX, the TSE forms part of an integrated Japanese market infrastructure that also includes Osaka Exchange and related clearing, settlement and data services.

The Tokyo Stock Exchange was established on May 15, 1878, as the Tokyo Kabushiki Torihikijo. Its creation formed part of Japan's Meiji-era effort to build modern financial institutions and mobilize capital through securities markets. Finance Minister Ōkuma Shigenobu directed the project, while Shibusawa Eiichi was a prominent advocate of the capitalist and institutional framework supporting it. Trading started on June 1, 1878. During the Second World War, the Tokyo exchange was combined with eleven other regional exchanges into the Japan Securities Exchange. That centralized organization closed in August 1945. The postwar exchange reopened on May 16, 1949, under legislation establishing a new framework for securities trading. It subsequently became the dominant venue for Japanese corporate equities and an important market for bonds and related instruments. The TSE underwent major institutional and technological changes during the late twentieth century. It was reorganized as a joint-stock company in 2001, replacing its former incorporated-association structure. The exchange's current building opened in 1988. Its physical trading floor was closed in 1999 as all transactions moved to electronic systems, and the TSE Arrows facility opened in 2000. The Arrowhead trading platform followed in 2010, supporting higher-speed electronic trading. The exchange grew to extraordinary global prominence during Japan's asset-price boom. By 1990, it accounted for more than 60 percent of global stock-market capitalization according to historical descriptions of the market. The subsequent collapse of Japanese equity and property prices sharply reduced the exchange's capitalization and international ranking, although it remained the country's leading exchange. A major structural turning point came with the creation of Japan Exchange Group. The integration of Tokyo Stock Exchange Group with Osaka Securities Exchange began after regulatory approval in 2012, and JPX launched on January 1, 2013. Tokyo Stock Exchange, Inc. became an operating subsidiary of the new holding company, while Osaka Exchange continued as the group's derivatives-focused exchange. The TSE has therefore operated since 2013 within a broader exchange and clearing ecosystem rather than as an entirely independent corporate group. The exchange has repeatedly revised its market segments to reflect changes in issuer size, liquidity, governance and investor access. Earlier segments included the First and Second sections, Mothers, JASDAQ and TOKYO PRO Market. On April 4, 2022, the principal structure was replaced by Prime, Standard and Growth. The reform was intended to make the market's purposes clearer and to encourage listed companies to meet more meaningful standards relating to liquidity, governance and sustainable public-market participation. Operational resilience has been an important part of the TSE's history. A 2005 transaction-system defect caused a major interruption, while the Mizuho Securities J-Com order incident that year highlighted shortcomings in erroneous-order controls and cancellation procedures. A 2018 gateway failure caused delays for several brokerage firms. On October 1, 2020, a market-information-system fault and unsuccessful failover to backup equipment halted all cash-equity trading for a full day. These incidents led to scrutiny of system design, testing, capacity, communications and business continuity. Despite such disruptions, the TSE remains Japan's principal public-equity venue and a significant global source of listed-company finance, market data and benchmark activity.

1. 2022Market segments reorganized

   Prime, Standard and Growth markets replaced the previous principal market divisions on April 4.

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2. 2013Japan Exchange Group begins operations

   JPX launched on January 1 following the integration of Tokyo Stock Exchange Group and Osaka Securities Exchange.

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3. 2010Arrowhead trading system launched

   The exchange launched its Arrowhead electronic trading facility.

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4. 2001Corporate restructuring

   The TSE changed from an incorporated association into a kabushiki gaisha, or joint-stock company.

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5. 2000TSE Arrows opens

   The TSE Arrows market-information and visitor facility opened on May 9.

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6. 1999Trading floor closes

   The physical trading floor closed on April 30 as the exchange completed its move to electronic trading.

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7. 1988Current exchange building opens

   The present TSE building opened on May 23, replacing the 1931 facility.

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8. 1949Postwar reopening

   The exchange reopened on May 16 under the new Securities Exchange Act and its modern postwar identity.

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9. 1943Regional exchanges consolidated

   Tokyo's exchange was merged with eleven other Japanese exchanges into the Japan Securities Exchange during wartime centralization.

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10. 1878Tokyo exchange established

    The Tokyo Kabushiki Torihikijo was established on May 15, and securities trading began on June 1.

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A central, highly regulated Japanese capital-markets infrastructure provider serving listed companies, domestic and international investors, securities firms and market-data users.

• Prime MarketEquity listing market2022

  The Prime Market is the TSE's principal venue for companies expected to have substantial liquidity, broad investor participation and strong corporate-governance frameworks. It is designed to support issuers seeking access to domestic and international institutional investors. The market was introduced on April 4, 2022, as part of the exchange's restructuring of its former sections.

• Standard MarketEquity listing market2022

  The Standard Market provides a venue for established companies that meet the exchange's listing, governance and disclosure requirements but do not necessarily fit the scale or liquidity profile expected of Prime issuers. It was created in the 2022 market reorganization and absorbed companies from several former sections.

• Growth MarketEquity listing market2022

  The Growth Market is intended for companies with comparatively high growth potential and business models that may still be developing. Its framework accommodates issuers with less mature operating histories while retaining requirements for disclosure and investor communication.

• TOKYO PRO MarketProfessional-investor market2009

  TOKYO PRO Market is a market for professional investors and smaller or specialized companies. It originated through cooperation with the London Stock Exchange and was established in 2009 under the Tokyo AIM concept before adopting its current identity.

• Listed equity and fixed-income tradingSecurities trading1878

  The TSE provides regulated secondary-market trading for listed Japanese equities and supports active bond and other securities markets. Its infrastructure connects listed issuers, securities companies, institutional investors, retail investors and market-data users.

• 2022Reorganization into Prime, Standard and Growth marketsStrategy

  The former First Section, Second Section, Mothers and JASDAQ categories had overlapping or unclear market roles and were reviewed against liquidity, governance and investor-access objectives.

  What changed. The TSE replaced the principal structure with Prime, Standard and Growth markets on April 4, 2022. Issuers selected or transitioned into markets under revised criteria.

  Aftermath. The reform created a more explicit three-tier framework and grouped companies according to market liquidity, governance expectations and growth characteristics.

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• 2012Integration with Osaka Securities ExchangeM&A

  Japanese exchange operators sought greater scale and an integrated market infrastructure covering cash equities, derivatives, clearing and related services.

  What changed. Tokyo Stock Exchange Group and Osaka Securities Exchange proceeded with a merger after approval by the Japan Fair Trade Commission.

  Aftermath. Japan Exchange Group began operations on January 1, 2013. The Tokyo Stock Exchange became an operating subsidiary within the new group, while Osaka Exchange continued to provide a derivatives-focused venue.

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• 2020October 2020 all-day trading suspensionControversy

  TSE experienced a serious systems failure that halted trading for the entire session on October 1, 2020. The incident prompted scrutiny of operational resilience, failover procedures and market-continuity controls. The event was an operational disruption rather than a finding that the exchange itself had engaged in misconduct.

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• 2025Tokyo Stock Exchange’s 2025 general-market IPO count was projected to decline

  Industry reporting based on TSE figures described 66 projected IPOs in the general markets, while TOKYO PRO Market was reported separately with 46 new listings.

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• 2022TSE introduces Prime, Standard and Growth market structure

  The exchange replaced its previous First Section, Second Section, Mothers and JASDAQ arrangements with three principal markets differentiated by liquidity, governance and growth characteristics.

  Product generation
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• 2022TSE reorganized its equity-market sections

  The former First and Second Sections and related markets were reorganized into Prime, Standard and Growth markets, alongside the professional-investor TOKYO PRO Market.

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• 2020Tokyo Stock Exchange suspends all cash-equity trading

  A fault involving the Arrowhead market-information system and failure to switch to backup hardware caused a complete trading suspension for the day. Normal trading resumed the following day.

  OtherRegulation
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• 2018Order-entry gateway outage affects Japanese brokerages

  One of four order-entry gateways became unavailable after an erroneous attempt to establish a duplicate connection. Several securities firms experienced delays affecting execution, correction and cancellation activity.

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• 2013Tokyo Stock Exchange and Osaka exchange cash markets were integrated

  The cash-equity markets of the former Osaka Securities Exchange were transferred to TSE as part of the broader JPX integration.

  M&A
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• 2010Tokyo Stock Exchange launched the arrowhead trading system

  TSE introduced arrowhead, a new electronic cash-equity trading system designed to improve speed, capacity and resilience.

  Product launchOther
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• 2009Tokyo Stock Exchange promoted understanding of TOPIX, ETFs and REITs through newspaper advertising

  A recurring newspaper campaign used the market-information page to explain TOPIX and listed investment products, with particular emphasis on improving public understanding of ETFs.

  Campaign
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• 2008London Stock Exchange and TSE announce a joint market initiative

  The London Stock Exchange and Tokyo Stock Exchange announced a Tokyo-based joint venture modeled partly on the LSE's Alternative Investment Market.

  M&A
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• 2006Livedoor shock prompts trading-capacity concerns

  A prosecutors' raid involving Livedoor triggered heavy selling and order volumes. The TSE ended trading early when its system approached its stated daily capacity, then expanded capacity from 4.5 million to 5 million trades per day.

  Other
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• 2005Tokyo Stock Exchange trading halted after new transaction-system failure

  A newly installed Fujitsu-developed transaction system malfunctioned, limiting trading to approximately 90 minutes and causing one of the exchange's most serious operational interruptions at that time.

  Other
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• 2005Executives resign after the Mizuho Securities erroneous order

  An erroneous J-Com order exposed weaknesses in order validation and cancellation procedures. TSE chief executive Takuo Tsurushima and two other senior executives resigned after the exchange acknowledged that its systems contributed to the incident.

  Leadership changeOther
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1. Tokyo Stock Exchange
2. Japan Exchange Group official website
3. Tokyo Stock Exchange’s 2025 general-market IPO count was projected to decline
4. TSE reorganized its equity-market sections
5. Tokyo Stock Exchange and Osaka exchange cash markets were integrated
6. Tokyo Stock Exchange promoted understanding of TOPIX, ETFs and REITs through newspaper advertising