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 |
 |
| Review of issues to which the liquidity factor is applied (As of April 28, 2023） |
 |
| List of Phased Weighting Reduction Constituents in TOPIX (As of October 7, 2022） |
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| List of Phased Weighting Reduction Constituents in TOPIX (After Re-evaluation) |
|
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.
(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.
(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 |
|
Historical Index Value
| As of end of 2022 |
 |
- 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) |
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| The result of periodic review of TOPIX new index series (October 31, 2022) |
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| New Index Series Code of newly added companies |
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TOPIX Related ETFs
Related Information
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.
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| 2019/9/12 |
Index Calculation in relation to shares of NIPPON TELEGRAPH AND TELEPHONE CORPORATION (9432)
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| 2019/8/5 |
Calculation of TOPIX in relation to shares of YAKUODO HOLDINGS Co.,Ltd.
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| 2019/5/8 |
Calculation of TOPIX in relation to shares of Star Mica Holdings Co.,Ltd.
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| 2019/2/5 |
Calculation of TOPIX in relation to shares of HITO-Communications Holdings,Inc.
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