Piazza Affari opens Thursday 17 November positive (+0.5%) thanks also to the collapse of gas at the TTF in Amsterdam which at the beginning of the European session lost 9% to 103.9 euros per megawatt hour. To "lighten" the price of methane on the markets the rumors in the press on a "price cap" of the European Union which would be triggered in the event of monstrous increases, beyond a predefined ceiling.