"European stocks are pushing higher on the back of investors' anticipation that the ECB will have to announce stimulus measures at their June 5 meeting," Benedict Goette, chief executive officer of Compass Capital in Zurich, told Bloomberg News. "We believe this market strength might well continue into early June."
Investors were also pleased with the outcome of European Parliament elections, held on Sunday, as anti-European Union parties garnered less support than some had feared particularly in key countries Germany and Italy.
Italy's FTSE MIB index jumped 3.6 per cent, while yields on the country's 10-year bond shed 17 basis points to 2.99 per cent
"We have not seen spectacular outcomes in terms of Eurosceptic parties in the weaker countries except for Greece ... and that seems enough to draw investors back," Christian Lenk, a fixed income strategist at DZ Bank, told Reuters.
US markets were closed on Monday for the Memorial Day holiday.
Pfizer said it gave up its effort to buy the UK's AstraZeneca, which had rejected its latest 69-billion-pound offer.
"We continue to believe that our final proposal was compelling and represented full value for AstraZeneca based on the information that was available to us," Ian Read, CEO of Pfizer, said in a statement. "As we said from the start, the pursuit of this transaction was a potential enhancement to our existing strategy. We will continue our focus on the execution of our plans, bringing forth new treatments to meet patients' needs and remaining responsible stewards of our shareholders' capital."