Regulatory Measures, etc., Concerning Margin Trading

（Unit ：％）
Implementation Date	Customer margin ratio (Cash collateral ratio)	Ratio multiplied by Securities in lieu of Money (In case of listed issues)
Jan. 01, 1987	60	60
Feb. 20, 1987		50
Feb. 27, 1987	70
Apr. 15, 1987	70(20)
Jul. 09, 1987	70
Jul. 22, 1987		70
Oct. 15, 1987		60
Oct. 21, 1987	50	70
Mar. 17, 1988	60
Jun. 03, 1988	70
Feb. 23, 1989		60
Jun. 30, 1989	60
Dec. 06, 1989		50
Jan. 11, 1990		60
Feb. 21, 1990	50
Feb. 27, 1990	40	70
Sep. 06, 1990	30
Oct. 05, 1990		80(Special case)
Sep. 30, 2007		80

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