Trump was definitely "a joke" before he announced. Even after, long after. Still a joke after he won. Still a joke after the Dow demonstrated that he is better for the safety and prosperity of the world than Obama was and Clinton would have been.
Luls at the Dow demonstrating anything other than Wall Street ejaculating over the upcoming tax breaks and deregulation, such as the one I linked earlier on this page.
Our brains have just one scale, and we resize our experiences to fit.