I know what you are getting at, but by the time the average Retail Investor can even get the opportunity to short the stock it is truely gambling.
"In a hot IPO, when many investors are clamoring to get shares, many of those who do get the newly issued shares will flip it—immediately sell it in the open market for instant profits. The investment bank must, by law, sell the new shares at the offering price regardless of demand. Because of the demand for the new issues, they have to be allocated, and usually it's the biggest clients of the investment bankers who get the issue—small investors almost never get to participate"
http://thismatter.com/money/stocks/investment-banking.htm