Guess you're right. The volume in the options was very small vs the stock trade, but maybe there was a few cent arb in there. I don't believe there was more than that at any time, and they were paying up for the calls, because no one was hitting them unless the stock was tanking.
Seems like a lot of work for a few cents. Did anyone just roll the dice and sell a few thousand of these sep's at 15-25 cents?