The Dow rose as gains in shares of Walt Disney and those of Boeing, recently up 4.9 per cent and 2.7 per cent respectively, outweighed declines in shares of Microsoft and those of Visa, recently down 2.8 per cent and 2.7 per cent respectively.
Shares of Walt Disney rose after the Wall Street Journal reported, citing people familiar with the situation, that the company has re-engaged in discussions with 21st Century Fox to purchase some of the media giant's assets, and Comcast remains in the mix, with deal talks gaining momentum.
In the latest corporate deals, CVS Health agreed to buy Aetna in a deal valued at about US$69 billion, the companies said on Sunday.
"We are obviously going to get some scrutiny," Aetna Chief Executive Officer Mark Bertolini said Sunday, according to Bloomberg. "We are prepared to deal with whatever comes along to make this work."
Investors aren't so sure. Shares of Aetna slipped, trading 0.6 per cent at US$180.19 in 12.54pm trading in New York, while those of CVS traded 4.9 per cent weaker.
The assumption is that next year's CVS earnings will be less than Wall Street currently foresees, Gabelli Funds portfolio manager Jeff Jonas told Reuters.
Strategically, Jonas noted, the deal has growth opportunities in its long-term plan to drive customers into CVS' MinuteClinics and offer more health services there. "Financially, though, it's really a stretch," he said.
In Europe, the Stoxx 600 Index finished the day with a 0.9 per cent advance from the previous close. Germany's DAX Index rallied 1.5 percent, while France's CAC 40 Index gained 1.4 per cent, and the UK's FTSE 100 Index increased 0.5 per cent.
British Prime Minister Theresa May and European Commission President Jean-Claude Juncker failed to reach a Brexit deal in Brussels on Monday.
"It was not possible to reach a complete agreement today," Juncker told reporters, according to Bloomberg, adding that talks will resume this week and he's confident there will be a agreement that paves the way for trade talks to begin.