The Hockey Stick

One of the patterns that is noticable at the opening each morning of Wall Street is the "Hockey Stick" Pattern...where news pundits will dramatically announce some news that is negative, and the stock plunges on the opening of trade, but...upon further review and thoughtful analysis, there really is no or little reason for panic, and the stock recovers over the course of the day---I call this the "Hockey Stick"---but the question is each morning on the plunges that happen due to news stories....Is this a hockey stick or not? You make the call.