In: Finance
You liquidate all your positions only when your margin is greater than 50%, and do nothing while your margin is less than 50%.
When you received a margin call at 30%, then you liquidating everything. Then start again with whatever money you have left in 2-1 ratio.
My question is which formula to used?
The formula of margin calculation:
Margin% = {(V – L)/V}*100
where, V is total stock value
L is loan from broker
For example is you purchase 100 unit of a stock at $40 and borrowed $2000 from broker:
The value of stock = 100 * $40 = $4000
Margin = {(4000-2000)/4000}*100 = 50%
So if margin is less than 50%, you liquidate. Suppose price of stock falls to $30 then margin will be:
Margin = {(3000-2000)/3000}*100 = 33.33%
So, margin is below 50% thereofore, investor will liquidate and get $3000 and start with 2:1 ratio i.e. $2000 again.