1. HOME
  2. Market News

Market News

Jan. 19, 2018 TSE Error in Periodic Review for J-Stock Index

 

Tokyo Stock Exchange (TSE) has identified that a part of the periodic review of J-Stock Index constituents conducted in November 2017 was not carried out according to the method described in "TSE Index Guidebook (J-Stock Index)" (hereinafter "the Guidebook").

1. Outline of the Issue
・A criterion(*) for the periodic constituent review described in the Guidebook states that, among other criteria, an issue that has been listed for less than one year shall be considered for selection if its market value is at least \20 billion as of the base date. However, TSE erroneously considered and included an issue that had been listed for less than one year and had a market value of at least \10 billion as of the base date.
(*)An issue that has been listed for one year or more shall be considered for selection if its market value is at least \10 billion as of the base date.
・As a result, the periodic review for J-Stock Index effective on November 30, 2017 ended with 98 issues selected, whereas the correct process would have led to 97 issues selected.

2. Response to the Issue
・Taking into account the continuity of the index, TSE will maintain the current list of J-Stock Index constituents and conduct index calculation based on the current list until the next periodic review, which is scheduled in November 2018. Please note that the current list of J-Stock Index constituents may change due to changes in JASDAQ listings.

For further information, please contact:

Contact

Tokyo Stock Exchange, Inc.,　Information Services Dept.
TEL:+81-50-3377-7754
E-mail:index@jpx.co.jp


Back to list