I don't think you missed any buying opportunity. It will be back down below yesterday's price int he next week. The StreetSweeper's targets don;t recover that quickly.
Look at ESPH (Jun 25, 2010), LLEN (Jan 11, 2011) & NOG (now), which Melissa targetted.
I was on the Long side with ESPH and LLEN, but now simply buy PUTs on whatever she attacks ... NOG and SWSH currently.