President Donald Trump said Wednesday there's "great" news about the economy, as he commented on recent volatility in the stock market. "In the 'old days' when good news was reported the Stock Market would go up," Trump said in a tweet. "Today when good news is reported the Stock Market goes down. Big mistake, and we have so much good (great) news about the economy!" The Dow Jones Industrial Average DJIA, -0.87% was up more than 200 points Wednesday after opening lower.