I feel like I must be missing something. Listing such a massive block of bitcoin for sale ($9 million!) shouldn't cause the price to flatline, it should be dro

I feel like I must be missing something. Listing such a massive block of bitcoin for sale ($9 million!) shouldn't cause the price to flatline, it should be dropping as more and more sellers realize the price is effectively capped at 300 for the time being. I can't figure out why more people aren't rushing in to sell in front of the 30k shares. Conversely, why are people buying now when their would seem to be availability at 300 later if the price doesn't actually drop? This sort of behavior makes it seem like the market isn't nearly as liquid as conventional exchanges.