And to elaborate... an IPO is issued because the company owners -- the ones with the most info about it -- believe it is the best time to sell, and have determined what they think is a fair selling price. Unless you're buying and holding for the longer term, there's no real expectation that the stock will appreciate significantly from the IPO price, except for initial hype. Unless you think the company owners (and their financial advisers) are flat-out wrong in their assessment of the company's value.
Mine was the bumper sticker version.
;)