r*k
2 楼
Scottrade short没利息。
N*d
6 楼
"It's not exactly a catch, but IB can, and will, liquidate your investments
without warning if you fall below margin requirements. Most retail brokers
will give you some warning, and time to meet the margin call by depositing
cash, even if they reserve the right to sell your investments.
If you take on margin debt at IB, you have to be prepared to have your
investments disappear if the market turns against you, even if you have
plenty of cash sitting somewhere else, and you'll still be on the hook if IB
doesn't sell fast enough to pay off your balance. You will also have a $10
monthly commission minimum (to which margin interest doesn't count), and $30
if you want any free market data; most brokers give that away for free.
If you fool around with margin, it's very easy to suddenly find yourself
down 60%. When you're dealing with that, saving half a percentage point
every month doesn't really matter that much."
without warning if you fall below margin requirements. Most retail brokers
will give you some warning, and time to meet the margin call by depositing
cash, even if they reserve the right to sell your investments.
If you take on margin debt at IB, you have to be prepared to have your
investments disappear if the market turns against you, even if you have
plenty of cash sitting somewhere else, and you'll still be on the hook if IB
doesn't sell fast enough to pay off your balance. You will also have a $10
monthly commission minimum (to which margin interest doesn't count), and $30
if you want any free market data; most brokers give that away for free.
If you fool around with margin, it's very easy to suddenly find yourself
down 60%. When you're dealing with that, saving half a percentage point
every month doesn't really matter that much."
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