Stock splits are irrelevant. It has been clearly shown that stock prices after a split continue on the same trend as they were on before the split. Therefore, there is no real justification for a split.
I suspect that the stock has been manipulated by the Chinese media so that Communist Party officials can buy shares for a lower price. In America, as biased as our strongly liberal leaning media is, there are consequences for false accusations. The company's revenue has been growing 20%+ for four years. Net income has grown faster than that. The market ALWAYS over-reacts. That over-reaction may not be over but the stock no longer reflects the value of the underlying company.
Stock price and the corporate performance ALMOST ALWAYS converge. So, do you have any facts to support claiming that corporate performance is about to go in the tank? Or is this a buying opportunity because the stock price dropped unreasonably low. One or the other scenario is far more likely than a random walk up and down 30-50% a week.
Does Nu Skin have a history of providing conservative guidance? Revenue of $650M, growth of 20% would be pretty good, deserving a PE higher than the current price reflects. The trend in historical revenue suggests that their prediction is low.