TOPIX and TOPIX Sector Index Futures

Introduction of Free Float Adjusted Indices

Update : Nov. 21, 2011

In accordance with the introduction of Free Float Adjusted Indices, the underlying indices for the index futures / options listed on the TSE will be changed to Free Float Adjusted Indices in stages after October 2005.The SQ calculation methodology will be changed as well.

Code system of index futures / options will not be changed.

reference

Relationship between the Introduction of Free Float indices and the contract months on index futures/options