Justified or not, high fliers usually pull back more than stocks that haven't had big moves. I'm not sure of the psychology, but people with large gains are quicker to sell.
What I am wondering is: since stocks are retreating due to a slowing world economy, just how cyclical is tissue paper? I can see cardboard, printer paper, the paper our junk-mail flyers are printed on, etc. being affected by the economy. But tissue?