 Ryanair shares fell roughly 11% after the company said its quarterly profit after tax had fallen 46%, and fares will be lower than expected in the summer months. The budget airline said that profit after tax in the three months that ended in June, Ryanair's first quarter, came in at $392 million. That's compared to the $722 million over the same period a year ago. The carrier also revealed a 10% increase in passenger traffic during the quarter.