This volume seems very strong based on the news of a new formulation of the skin care product. I think it may have to do with Stern´s comment that (paraphrased) "The test marketing was successful". Again, I don´t know the scope of the entire test market, but this is excellent momentum nonetheless.
I wouldn´t be surprised if there´s other news in the pipe line. As in the past, it seems a few folks get the word before the rest of us.
Also, some with short positions may be getting the jitters and bailing out...