Actually, this is because the underwriters are still pricing the deal by assessing potential market interest. Companies have always been able to amend their reg

Actually, this is because the underwriters are still pricing the deal by assessing potential market interest. Companies have always been able to amend their registration statements to fill in pricing details. See http://en.wikipedia.org/wiki/Red_herring_prospectus http://en.wikipedia.org/wiki/Red_herring_prospectus