sgr.db
Here's a scenario.
The underwriters want full participation in the offering or at least that's what the optics are. The current shareprice isn't that enticing to buy so there is probably a big short getting ready to pile on when the debenture starts trading. Just as the bears start dumping, a fresh wave of new longs snap up all the shares and squeeze the shorts as the underwriters demand delivery of shares that they lent the shorts earlier.