Friday's "Mystery Shares" had NOTHING to do with quadruple witching. The only relevance to LIghtwave was the December options expiration. There was an OI of 2,500 contracts going into Friday that were ITM. Volume on Friday was about 30% of OI, mostly closing transactions. These options would account for AT MOST 250,000 shares. That is only about 5% of the Mystery Shares. My guess is some of the shares were taken off the shelf, for which we'll see an explanation PR in the near furure.
"Case Closed."