Tokyo Stock Price Index - TOPIX (TPX/09M-TO)

The Economic Times  Aug 29  Comment 
The benchmark Nikkei 225 index eased 35.27 points to finish at 15,424.59, while the Topix index of all first-section shares fell 0.22 per cent.
The Economic Times  Aug 28  Comment 
The broader Topix declined 0.4 per cent to 1,280.74, and JPX-Nikkei Index 400 fell 0.5 per cent to 11,630.32.
Japan Today  Aug 28  Comment 
Tokyo stocks closed down 0.48% Thursday, dragged by a stronger yen, after a muted session on Wall Street. The benchmark Nikkei 225 index eased 74.96 points to 15,459.86, while the Topix index of all first-section shares was down 0.40%, or 5.18...
Japan Today  Aug 27  Comment 
Tokyo stocks closed flat on Wednesday after sluggish trading as market participants remained cautious about the future of the Japanese economy. The Nikkei 225 index edged up 0.09%, or 13.60 points, to 15,534.82 while the Topix index of all...
Japan Today  Aug 26  Comment 
Tokyo stocks slipped 0.59% Tuesday on profit-taking as investors weighed a solid yen against a record close on Wall Street. The Nikkei 225 index at the Tokyo Stock Exchange fell 92.03 points to 15,521.22, while the Topix index of all...
Japan Today  Aug 25  Comment 
Tokyo stocks closed up 0.48% on Monday as investors welcomed the dollar's rise following U.S. Federal Reserve chief Janet Yellen's defense of current monetary policy. The Nikkei 225 index gained 74.06 points to 15,613.25. The Topix index of all...




 
TOP CONTRIBUTORS

The Tokyo Stock Price Index is the composite index for the Tokyo Stock Exchange tracking all domestic stocks from the First Section of the exchange. The index is a measure of the market value changes of the common stocks on the TSE. The TOPIX can be mapped back to its base date on January 4th, 1968 and its base value of 100 points[1].

Weighting and Calculations

TOPIX shows the measure of current market capitalization assuming that market capitalization as of January 4 ,1968 is 100 points. The index is formulated as such[2]:

  • The index computation is as follows: Current aggregate Market Capitalization x 100 /Base Aggregate Market Capitalization

Where the aggregate market capitalization is calculated as:

  • Σ(Price of stock* Number of shares)*free float factor/Index divisor.

The Free float Adjustment factor represents the proportion of shares that is free floated as a percentage of issued shares and then its rounded up to the nearest multiple of 5% for calculation purposes. To find the free-float capitalization of a company, first find its market cap (number of outstanding shares x share price) then multiply its free-float factor. The free-float method, therefore, does not include restricted stocks, such as those held by company insiders.

While one might track this portfolio’s value in dollar terms, it would probably be an unwieldy number. Rather than deal with ten or more digits, the figure is scaled to a more easily handled number. Dividing the portfolio market value by a factor, usually called the Index divisor, does the scaling.

Composition

Eligibility

Since the TOPIX covers all the domestic stocks on the First section of the Tokyo Stock Exchange, the criteria for the TOPIX is the same as the one established for selection of stocks in the First Section. They are[3]:

  • There should be more than 800 shareholders in the company
  • Number of tradable shares must be more than 4000. Tradable shares refers to listed shares which exclude shares owned by the company, officers, and people who own more than 10% of the company listed shares.
  • The Tradable shares ratio to the listed shares must exceed 30%
  • Market Capitalization for the 1st section listed shares should exceed 50 billion yen.
  • Shareholders equity must be at least 1 billion yen in the past fiscal year.
  • Annual total of pre-tax profit for the last two years should be 500 million yen (400 million yen for the past fiscal year) or the last three years be 600 million yen.

List of companies

The TOPIX covers all the companies on the first section of the Tokyo Stock Exchange. As of 10th November 2008, there were 1713 companies listed on the first section of the TSE[4]. The market value for the index on the same date, was 294,733 Billion Yen, with a trading volume of 212 million shares[5].

References

  1. TOPIX Index
  2. TOPIX Index facts
  3. List Criteria for the TSE
  4. TSE Search
  5. TSE First section statistics
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