Dear all, I can’t really get the idea why initial and variation margin are generally different? Let’s say market value of a share equals 100 , its 99% 1 day var equals 7. I am a broker and I set margin requirements for my client as 7 to be 99% sure I will not suffer a loss in the next day. Should this 7 be both initial and maintenance? Why initial is usually greater (let’s say 12)?