TOPIX

For more information on Index revisions after April 2022, click the link below.
Overview of Index Revisions

What is TOPIX ?

TOPIX is a market benchmark with functionality as an investable index, covering an extensive proportion of the Japanese stock market. TOPIX is a free-float adjusted market capitalization-weighted index. TOPIX shows the measure of current market capitalization assuming that market capitalization as of the base date (January 4 ,1968) is 100 points. This is a measure of the overall trend in the stock market, and is used as a benchmark for investment in japan stocks.

Summary of TOPIX

Index Name TOPIX
(Tokyo Stock Price Index)
Calculation Method Free-float adjusted market capitalization-weighted
Start of Calculation Jul. 1, 1969
The price return index is calculated and disseminated in real-time (per sec).
Base Date / Base Point Jan. 4, 1968 / 100 points

Component Issues

TOPIX Component Stocks Weight icon-csv
Review of issues to which the liquidity factor is applied (As of April 28, 2023) icon-pdf
List of Phased Weighting Reduction Constituents in TOPIX (As of October 7, 2022) icon-pdf
List of Phased Weighting Reduction Constituents in TOPIX (After Re-evaluation) icon-pdf

Note (Published on October 31, 2022)
*Please note that the liquidity factor flag will be terminated on the TOPIX Component Stock Weight file at the end of January 31, 2023 (as of December 30, 2022).
The file format will be changed Excel to CSV.
*Please refer to “Review of issues to which the liquidity factor is applied” for the liquidity flag published on every April. And the liquidity factor is also applied to stocks newly included in TOPIX constituents.

Review of issues to which the liquidity factor is applied
New Listings(For technical listing, apply the liquidity factor of delisting company)
List of Segment Transferred Companies
(note)
  • Please note that effective as of the end of October 2016, the update time and contents has changed as follows:
    1.Change of update time
    The monthly component weight data (as of the end of the month) for TOPIX will be updated on or after 4:20 pm (Japan time) on the last business day of the following month.
    Ex) Monthly component weight data as of the end of October will be updated on or after 4:20 pm on the last business day of November.
    2.Changes in contents
    Publication of "Free Float Weight of TOPIX" has been terminated at the end of September.
    3.Alternative source of information
    Alternative information is available on "JPX Data Cloud".
    Please refer to “End of month Master Of Index” from the following link.

JPX Data Cloudicon-block
(note)
  • Publication of “Updated FFW” has been terminated at the end of October.2016.

Contact

JPX Market Innovation & Research, Inc. Index Business
E-mail:index@jpx.co.jp

Calculation Method

Tokyo Stock Exchange Index Guidebook
Free Float Weight Calculation Methodology

Historical Index Value

As of end of 2023 icon-xls

(Note)

  • Open/High/Low/Closing Prices*Figures are based on closing prices and a calender year.

TOPIX New Index Code information

The result of periodic review of TOPIX new index series (October 31, 2023) icon-pdf
The result of periodic review of TOPIX new index series (October 31, 2022) icon-pdf
New Index Series Code of newly added companies icon-xls

TOPIX Related ETFs

Listed Issues

Related Information

Factsheet

News

2023/10/6 Constituent Change in TOPIX New Index Series
2023/10/6 Re-evaluating Phased Weighting Reduction Constituents in TOPIX
2023/9/5 Calculation of TOPIX in relation to shares of MIGALO HOLDINGS Inc., etc.
2023/8/16 Index Calculation in relation to shares of JAPAN POST HOLDINGS Co.,Ltd. (6178)
2023/7/14 Calculation of TOPIX in relation to shares of Confidence Inc.
2023/6/5 Calculation of TOPIX in relation to shares of Integrated Design & Engineering Holdings Co.,Ltd.
2023/3/3 Calculation of TOPIX in relation to shares of NIPPON KANZAI Holdings Co.,Ltd.
2022/10/7 Constituent Change in TOPIX New Index Series
2022/10/7 Publication of List of Phased Weighting Reduction Constituents in TOPIX and Tokyo Stock Exchange Mothers Index
2022/9/16 Index Calculation in relation to shares of NIPPON TELEGRAPH AND TELEPHONE CORPORATION (9432)
2022/9/5 Calculation of TOPIX in relation to shares of WOW WORLD GROUP Inc., etc.
2022/8/3 Calculation of TOPIX in relation to shares of PICKLES HOLDINGS CO.,LTD.
2022/3/3 Calculation of TOPIX in relation to shares of Procrea Holdings,Inc.
2021/12/3 Calculation of TOPIX in relation to shares of NIPPON EXPRESS HOLDINGS,INC., etc.
2021/10/15 Index Calculation in relation to shares of JAPAN POST HOLDINGS Co.,Ltd. (6178)
2021/10/7 Constituent Change In TOPIX New Index Series
2021/9/3 Calculation of TOPIX in relation to shares of INFRONEER Holdings Inc., etc.
2021/6/14 Index Calculation in relation to shares of JAPAN POST HOLDINGS Co.,Ltd. (6178)
2021/6/3 Calculation of TOPIX in relation to shares of Densan System Holdings Co.,Ltd., etc.
2021/4/30 Revisions of TOPIX and Other Indices
2021/3/4 Recognition under EU Benchmark Regulation
2021/3/3 Calculation of TOPIX in relation to shares of ASKA Pharmaceutical Holdings Co.,Ltd.etc.
2020/12/25 Index Consultation on Revisions of TOPIX and Other Indices
2020/10/7 Constituent Change In TOPIX New Index Series
2020/6/22 Postponement of Periodic Review of Free-Float Weight
2020/6/16 Revisions to the Index Guidebooks for TOPIX, etc.
2020/3/27 Change in Minor Adjustment Date Related to Ex-dividend for TOPIX, etc.
2020/3/4 Calculation of TOPIX in relation to shares of A.D.Works Group Co.,Ltd.
2020/2/21 Decision on Calculation of indices in relation to shares of KOSHIDAKA HOLDINGS Co.,LTD.
2020/2/21 Publication of "Planned Measures for Review of Tokyo Stock Price Index (TOPIX), etc."
2020/1/29 Calculation of indices in relation to shares of KOSHIDAKA HOLDINGS Co.,LTD.
2019/10/07 Constituent Change In TOPIX New Index Series
2019/9/18 Calculation of TOPIX in relation to shares of TABUCHI ELECTRIC CO.,LTD. and DIAMOND ELECTRIC HOLDINGS Co.,Ltd.
2019/9/12 Index Calculation in relation to shares of NIPPON TELEGRAPH AND TELEPHONE CORPORATION (9432)
2019/8/5 Calculation of TOPIX in relation to shares of YAKUODO HOLDINGS Co.,Ltd.
2019/5/8 Calculation of TOPIX in relation to shares of Star Mica Holdings Co.,Ltd.
2019/2/5 Calculation of TOPIX in relation to shares of HITO-Communications Holdings,Inc.