Tokyo Stock Exchange: Amendment To The Press Release As Of April 1, 2005 On The Publication Of EX-TOPIX

Tokyo Stock Exchange, Inc.(TSE) announced today that it will change the description on page 3 in the press release of April 1, 2005 regarding the publication of Ex-TOPIX.This change is designed to provide Ex-TOPIX on a real-time basis from October 31, 2005. Details of this change are as follows:

1. Content of the change

Before change - Page 3 of Press Release of April 1, 2005

Item	Content	Remark
1. Index	Ex-TOPIX	Unchanged
2. Commencement date of index calculation	October 31, 2005
3. Index value on calculation commencement date	The same index value as the closing index value of TOPIX on October 31, 2005	Example: If the closing index value of TOPIX is 1,200.00 points on October 31, 2005, the index value of the Ex-TOPIX is 1,200.00 points on the calculation commencement date.

After change - Page 3 of Press Release of April 1, 2005

Item	Content	Remark
1. Index	Ex-TOPIX	Unchanged
2. Commencement date of index calculation	October 31, 2005
3. Index value on calculation commencement date	The same index value as the closing index value of TOPIX on October 28, 2005	Example: If the closing index value of TOPIX is 1,200.00 points on October 28, 2005, the preset point of the Ex-TOPIX is 1,200.00 points

2. Reason of the change

To provide the index value of Ex-TOPIX on a real-time basis from October 31, 2005. (Previously it was set to start from the closing price on October 31.)

Publication of Provisional Indices and Ex-TOPIX with the Introduction of Free Float Adjusted Indices - TSE News of April 1, 2005