I was going to ask if there are any industries or companies that would be insulated from experiencing price changes from hype but I'm assuming it always plays a role.
So, the question then turns to how we can absolutely know a price change was due to anticipated hype?
Perhaps this is due to a product release, incoming CEO, new management, etc.
Does a price change due to hype occur at a certain time when affecting price? Basically does it only occur before the product is released or does it take effect when or after the product is released to confirm the sentiment?