ROCHESTER, N.Y. -- The DOW opens Thursday morning having reached a milestone. 

The Dow Jones Industrial average hit 20,000 for the first time, two months after it crossed 19,000 points.

Many experts say this is just part of a so-called "Trump Bump" since the surprise victory in November's election.

They are keeping a close eye on future developments from the white house. 

“There’s been a lot of promises that are pro-business, pro-economic growth, so that is part of the optimism that’s baked into the numbers right now," said Brennan Redmond of Brighton Securities. "So that’s good, but it’s a double edged sword, because if those policies or promises go unfulfilled, we could see a retreat.”

Traders everywhere have been watching the market climb steadily higher since bottoming out in March 2009.