Quote from neke:
This is an example of what I call the "leverage handicap". You are shorting a stock in two trades. The stock goes from 120 to 100 in the first trade, and then back to 120 in the second trade. You would think that is a break-even trade (minus commissions). But it is not, especially if you go with leverage like I do.
At the first trade, with a balance of say 150K in account and buying power of 300K (2Xaccount), you could short 2500 shares @ 120. You cover at 100, gaining 50K. You now have 200K and a buying power of 400K. You can now short 4000 shares @ 100. You cover at 120, losing 80K. On the whole you have lost 30K (20%) through pure stock volatility. Does not really matter whether the stock goes down first and up or the reverse.
So to make it in those times, your edge need to be stellar.
Interesting... seems that even without using leverage you'd still lose -10K, although it's less than with leverage due to the amount of capital/shares in use during the loss.
