These are the big boys. There are over 10,000 put and call options for strike price = 30 for Feb. They will keep the price around 30 until Feb option expiration. That's how they make money. If you think that the market trading is "fair", think again. It's skewed in favor of the boys who have the money.
It actually took me over 15 years to figure that out. Now I'm playing like them but with much smaller amounts. Because of that, I am making about 15% per month. Finally I am being profitable. I am making gobs on CRUS