Google parent Alphabet hit a market capitalization of $3 trillion for the first time on Monday, riding on renewed optimism around artificial intelligence and a favorable antitrust ruling. Class A shares of the company were up 3.8 per cent at $250, while Class C shares climbed 3.7 per cent to $250.4 - both trading at record highs. Including Monday's gains, the company's shares have rallied more than 32 per cent so far this year, the best performer among the so-called "Magnificent 7" stocks and