To reduce the commission of index option in order to quicken the growing of a sound speculator in an index option market in Japan.

The cost for option transaction itself is already very low. This is because there are a small number of elements requiring the complexty a transaction system like a large number of brands, deliver and reception of actual articles and the processing of a right relation are unnecessitated as against the transaction of stock. However, since option is incorporated as a part of a stock transaction system in existent securities, option fees can not be reduced because of the entire cost calculation. In addition, since even a security firms called newcomers regards the option market whose scale is smaller compared with the field of stocks or investment trust and bonds not as targets but as attached matters, the effect of financial reform is not exerted. Then, by separating only a system concerning option, the cost for option is reduced.