Etrade requires a minimum 25k in a margin acct. as collateral. Avg joe cant afford that, certain seasoned traders here can afford that. Their trading acct values are many many times that, so its a non issue for the ppl doing it. Saying it that way makes it sound as if you gotta put all kinds of money up front, thats bs, its all about acct balances. Cash on hand, etc etc. If you got the collateral you can short it. Very easily. And though i cant stand shorts they are quite masterful in the way they do it. Most shorters on here make money both directions. They flip otw up and short the hell out of it on the way down. Pretty simple actually