It would decrease, and further than affecting the share price, you'd be damaging the long-term sustainability of the company. This is not a corporation that has a history of enormous financial success. The airline industry is a perpetual struggle.
Evidence of meeting #44 for Transport, Infrastructure and Communities in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was aveos.
A recording is available from Parliament.