RE: Drop27 Apr 2026 13:37
Sorry, I'm still trying to understand the details of the shorting process. Here's my current understanding (much better than it was an hour ago!).
During short sales, there’s usually 3 parties involved - the current holder of the shares, the broker, and the short seller. When the short seller asks to borrow, they do so from the broker. The broker then either looks in their own inventory, other customers’ accounts, or other institutions and hands over the stock from one of these sources to the borrower. The borrower usually has to put up collateral worth more than the borrowed amount in the event they are unable to return the shares. Additionally, the broker is paid a fee up front by the short seller for the privilege of borrowing.
So from the broker’s POV, i all they care about is receiving those shares back by a certain date. They hand over the shares from one of the 3 sources above, collect the collateral and fees and just bank it. If the stock tanks, all goes to plan and they get it back from the borrower with no issues and the stock broker returns the collateral If the borrower is wrong and the stock rallies, the borrower have to find a way to give those shares back to the broker. If they can’t, they get margin called and the collateral is liquidated.
So where does the broker stand if the borrower does sell the borrowed share and make a profit? The borrower will be returning the shares to the broker, at a lower price as to when the borrower borrowed the shares (otherwise the borrower won't make a profit). So now the broker has the interest fees on the loan, and a bunch of shares that have dropped in value. That might be okay if the broker has a long term view on the shares - ie they will recover. But if the company goes bust, or doesn't recover for years and years, then hasn't broken lost money (on paper) with no hope of retrieving it? I'm not sure the interest on the loan would be great compensation for that risk. It would have been (imho) much better to sell ITM at 400 when it started dropping and just buy back in at 50, rather than lend shares to someone and then wait for them to recover.....
Or is the broker taking the view that shorter is wrong, and the shares will go up. I did not think broker's liked to gamble. They are surely like bookmakers, and just arrange their business to be profitable by adjusting the odds the punters take.