Originally posted by lasersailor184
Wait a second, scenario A doesn't make any sense. If the price goes down, the brokerage firm loses money because in the end they are holding onto the same number of shares that are worth less.
So why would any brokerage firm take that risk? Or is it a risk that they are hoping would screw the trader but benefit themselves?
yes a brokerage makes money, whether stocks do good or bad. $7-$30 a trade, plus a percentage of the value for certain types of trades.
read the FAQ in the link in my previous post, for how short selling works.
as for why they would take the risks, well for one, to keep a paying customer happy, and they are not really risking anything.
the reason is, some people buy a stock and hold it for a long long time, knowing historically the price is going up. as long as the company is making money, goods, growing the business, expanding, etc. the stocks value will go up.
anyway back to the point.
the short seller is borrowing stock from some one who is going to hold it for a long time.
selling short is usually a short term contract, borrow the stock for a certain period of time. say for example; 120 days. that means the short seller hopes the price drops lower before the 120th day, so they can buy to cover to make money. they can buy to cover the day after they sold it short, if they wanted to.
but if it never does drop lower, and keeps going up, at the end of 120 days of the contract the short seller has to buy to cover. and it may very well cost the short seller a lot more than what they got for selling it short.