"Was this just the result of a weak general market, or a shake out?"

Both. NOT's sp was being dragged down well before Friday and Friday just made for better cover, not that they seem to need it. There were no fundamentals to support the sell of NOT. It's simply play the sp while news is pending.... old story. They just know more than we do. I forget who supplied the stats but the shorts on NOT had risen for the last month so someone was preparing to do some damage to this stock. I think we'll see some further dipping but anything can happen at any time. If the shorts have done their thing, we might see a lull in pressure. All is speculation.