Quote from HedgefundTrader2:
All you have to do is look at the charts of these companies and tell me how badly they were mauled in last few months due short sellers and bears raiding the loot wiping out investors and retail public en masse... I mean those vicious sell offs where puts were bought ahead of shorting..completely wild wild West..
GOOG, CROX, SIGM, BIDU, AAPL, DRYS
IF we had an uptick rule this wouldn't have happened.
I believe your conclusions based on analysis are incorrect, but
I could be wrong.
First, I am confident you are correct in that shorting did add to the selloff because selling always adds downward pressure on price whether it is a short seller or a long who is liquidating.
The question, as far as price movement is concerned, is whether the downward selling pressure is enough to over power the upward buying pressure.
Often after a stock has had a five to ten fold upward move, we see nervous longs starting to lock in profits at the same time new buyers are drying up. As price begins to move down, the nervousness among longs begins to increase as their paper profits begin to deminish. This in turn causes more profit taking (selling) and downward pressure on price.
It is not uncommon for prices to be cut in half during this NORMAL profit protection process. Some of this downward selling pressure is from short sellers but a great deal of it is selling by longs. It is also quite common to see a lot of the downward movement as gap down opens of the day session.
I have attached a section of a 55 tick chart of the CME for 2/06/08, a day which saw a day session range of $108.34 for the stock. All during this day (almost during every bar) and every other down day there are plenty of opportunities to short reguardless of whether there is an uptick rule or not.
The uptick rule has an effect on whether a person is able to short at the exact price they desire but in practice it has almost no effect on wheather they are able to short or not.
Looking at the 55 tick chart of the CME (which is quite representative of this type of stock), I see no evidence that an uptick rule would have prevented short selling or had any real effect on price movement. An uptick rule might have some effect on the price movement of a small very thinly traded stock but I don't believe it would have much if any effect on highly liquid stocks.
But I could be wrong. Believe me when I say I am a big believer in perception. With me it is often a case of "What I saw!", "What I thought I saw!" and "What I now think I saw!"
Success to all in your trading.
Nutsneal