Types of trades 19
Long position:
owning an asset (e.g. 100 OMV shares)
Short position / short selling
Borrow shares from someone (the ow
ner) usually through a broker, i.e.
taking a short position
Sell (short) these shares, say for x
Pay dividends to the owner of the shares
Buy shares back, say for y
Return the shares borrowed, i.e. closing out the short position
Profit / loss = x - y - dividends paid
If the owner wants to sell her shares the broker will simply borrow them from some other costumer. However, if
there are too many short sales and
not enough costumers from whom to bo
rrow shares, the broker may fail to
execute the trade (“
short squeeze
”). In a short squeeze the broker has
the right to force us to close out our short position.
Single-period random cash flows: Stocks