"The strong cyclical momentum, the ongoing reduction of economic slack and increasing capacity utilisation strengthen further our confidence that inflation will converge towards our inflation aim of below, but close to, 2 percent", Draghi told reporters in Frankfurt after a Governing Council meeting.
Technology and health care companies are leading stocks broadly higher in midday trading on Wall Street.
But Wynn Resorts plummeted 10.1 per cent after the Wall Street Journal published an investigation outlining numerous complaints of sexual misconduct by billionaire casino mogul Steve Wynn. France's CAC40 Index fell 0.3 percent, the UK's FTSE 100 index slid 0.4 percent, while Germany's DAX Index dropped 0.9 percent.
The S&P 500 is up 165.64 points, or 6.2 percent.
Bond prices fell. The yield on the 10-year Treasury rose to 2.66 percent.
In the energy market, US crude rose 0.89 percent to $66.09 per barrel and Brent was last at $70.47, up 0.07 percent on the day.
"The bullish sentiment remains in place, and while we have seen some earnings shortfalls, it has still been a very constructive earnings season for the broader economy and the stock market", said Gorilla Trades strategist Ken Berman.
Buoyed by AbbVie, the S&P healthcare index gained 2.17 per cent, scored its best day since November 2016 and was the best performer among the 11 major S&P sectors.
Meanwhile, the Dow rose 140.67 points or 0.5% to 26,392.79 and the S&P 500 inched up 1.71 points or 0.1% to 2,839.25. The Nasdaq Composite () was up 47.80 points, or 0.64 percent, at 7,458.96.
Bond prices fell. The yield on the 10-year Treasury note rose to 2.67 percent. On Thursday, the contract climbed to as high as $71.28, its highest since 2014.
United States stocks opened higher on Thursday as corporate earnings reports came out overall positive.
Facebook rose 1.1 percent in early trading Thursday and chipmaker Intel added 1.6 percent.
Gold, natural gas and semiconductor stocks also came under pressure on the day, while utilities, pharmaceutical and chemical stocks showed strong moves to the upside. Shares of Caterpillar, which saw up-and-down action throughout the session, added about 7 points.