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10th July 2017
Changes to the Nikkei Indexes


Nikkei Inc. makes the following changes to the Nikkei indexes in response to the reassignment of the market section and stock consolidation of their constituents.

1. Reassignment to 2nd Section of Toshiba Corporation

Toshiba Corporation (6502), a constituent of the Nikkei Stock Average (Nikkei 225), the Nikkei Stock Index 300 (Nikkei 300), the Nikkei 500 Stock Average (Nikkei 500), and the Nikkei China Related Stock 50 (Nikkei China 50) will be reassigned to the 2nd Section of the Tokyo Stock Exchange.

On its reassignment date of August 1, Toshiba will be deleted from these indexes and the following stocks will be added in accordance with their constituent selection rules. The changes will be effective from the opening of the market on August 1.

[Nikkei 225]
  Seiko Epson Corporation (6724)
  Presumed Par Value = 25 yen, Sector = Technology

[Nikkei 300]
  Nexon Co., Ltd. (3659)

[Nikkei 500]
  Nippon Shinyaku Co., Ltd. (4516)
  Presumed Par Value = 50 yen, Industry = Pharmaceuticals

[Nikkei China 50]
  Nippon Paint Holdings Co., Ltd. (4612)

2. Stock consolidation of Tokyu Corporation

Tokyu Corporation (9005), which is a Nikkei 225 and Nikkei 500 constituent, is planning a stock consolidation (reverse split). From its ex-right date of July 27, Nikkei Inc. will change the presumed par value of Tokyu from 50 yen to 100 yen in line with its consolidation ratio of 2 to 1.


13th June 2017
Regarding the Stock Split and Reverse Stock Split of the Nikkei 225 Constituents


NTT DATA Corporation (9613), ASAHI GLASS CO., LTD. (5201) and Nippon Electric Glass Co., Ltd. (5214), all of which are Nikkei Stock Average (Nikkei 225) constituents, are planning corporate actions (stock split and reverse stock split). From the morning of the ex-right date of June 28, Nikkei Inc. will change the presumed par value of these constituents as follows.

Split / Rev Split
Current Par (Yen) New Par (Yen)
NTT DATA (9613) 1 to 5 split 50 10
ASAHI GLASS (5201) 5 to 1 rev. split 50 250
Nippon Electric Glass (5214) 5 to 1 rev. split 100 / 3 500 / 3

Since the price level of these constituents in Nikkei 225 will stay the same, the divisor will not be changed by these corporate actions.


31st May 2017
Regarding the shortening of the Nikkei Stock Average calculation intervals


Nikkei Inc. will shorten the calculation intervals of the Nikkei Stock Average (Nikkei 225) from 15 seconds to 5 seconds from July 18, this year. The displays of the information vendors such as QUICK will be updated every 5 seconds.


14th March 2017
Regarding Toshiba Corp. in Nikkei Indices


Toshiba Corporation (6502), which is a constituent of the Nikkei Stock Average, Nikkei Stock Index 300, Nikkei 500 Stock Average and Nikkei China Related Stock 50, will be designated as a gSecurity under supervision (Kanristock)h by the Tokyo Stock Exchange from tomorrow, March 15.

Nikkei Inc. keeps Toshiba as a constituent of the indices at this stage. Nikkei will observe the examination process by the Tokyo Stock Exchange and the Japan Exchange Regulation, and decide and announce whether or not to replace Toshiba later.


6th January 2017
Nikkei Stock Average Constituents Change


Nikkei Inc. will make the following change to the Nikkei Stock Average (Nikkei 225) constituents as a result of the business integration of a Nikkei 225 constituent, Mitsumi Electric Co., Ltd. and another constituent, Minebea Co., Ltd.

Mitsumi Electric (6767) will integrate its business with Minebea by the share exchange, and will be delisted from the Tokyo Stock Exchange on January 24.

Mitsumi will be removed and Otsuka Holdings Company Limited (4578) will be added to the index from the morning of January 24. In accordance with constituent selection rules, Otsuka Holdings was selected from high liquidity stocks in the same Sector (Technology) as Mitsumi. Presumed par value of Otsuka Holdings is 50 yen.



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