Simply put, the argument is that the the 'price' of price manipulation is one the market (read: the purveyors of the exchange who get to make the rules) are wil

Simply put, the argument is that the the 'price' of price manipulation is one the market (read: the purveyors of the exchange who get to make the rules) are willing to allow in exchange for an orderly, stable market. IPOs are hectic times, and they want some stability while the dust settles.