Major stock markets outside the United States ended on Tuesday.
Among major gainers, Gas Natural rallied after France's Suez said it planned to increase its stake in its Spanish rival, while take-over developments boosted both Reuters and Hanson.
"On a fundamental basis, the market is quite healthy, we don't see any bubbles right now. We have extremely high liquidity and M&A activity which is pushing markets further," said Philipp Musil, fund manager at Constantia Privatbank.