Answer:
The selling power in the account is $20,000.
Step-by-step explanation:
Credit - Short market value = Equity %
Sale $20,000 $20,000
Margin $10,000 $10,000
Total $30,000 $20,000 $10,000 50%
If the market value falls to $16,000, the account will show;
Credit - Short market value = Equity %
$30,000 $16,000 $14,000
To support a $16,000 stock position at 50% margin, equity of $8,000 is required. Since the account has $14,000 of equity, the excess of $10,000 may be borrowed and it's the
SMA amount. With $10,000 of SMA amount, twice this amount may be purchased or sold short in other marginal securities.