It is interesting that some folks who I did not expect to follow my blog are observing this margin trading experiment so here's another update : Apparently the good folks of Maybank Kim Eng do read my blog and called me up to apologize for the "mistaken" margin call. They also told me that they were not sharing email accounts and my broker did make a mistake and triggered the margin call on Saturday. I took their word for it because my problem is solved and the system is reflecting my margin numbers correctly. I'm also very forgiving because I am borrowing at only 2.88%, smart readers might wanna hop in after I help these guys even out their operational kinks but the choice is yours. So let's  recap what a margin ratio is : Margin Ratio = ( Value of shares pledged + Value of shares bought using margin ......