My margin loan with comsec just steped into buffer level; and potentially I have a margin call if market continuely falls down. Unfortunately, I bought Challenger China Share Fund when the price on the top. If I redem this fund units, I will get lost. Please note that I have insufficient fund to put into the margin loan at this time. In my portfolio, I have held some Perpetual Geared Australian Fund for 2 years and have unrealised CG. Should I sell Perpetual Geared Australian (CG) or Challenger China Share Fund (Loss) in case of margin call? Do you have any strategy to minimise the loss?