Here's what to expect in a typical underwriting agreement.  The announcement did not have  most of this information, so the market is in the dark:

• An underwriting agreement takes place between a syndicate of investment bankers who form an underwriting group and the issuing corporation of a new securities issue.
• The agreement ensures everyone involved understands their responsibility in the process.
• The contract outlines the underwriting group's commitment to purchase the new securities issue, the agreed-upon price, the initial resale price, and the settlement date.
• There are several ways of structuring an underwriting agreement including best efforts and firm commitment, among others.