Aena shares fell after the Spanish government lifted its veto on a bill proposing a co-management model for Balearic Islands airports. The legislation now advances to Congress for debate.
The airport operator opposes the bill, arguing the proposal is unconstitutional because the state holds exclusive authority over airports of general interest. Aena warned it will take measures to protect shareholder interests if the legislation passes.
The company contends the law would undermine its network management model, which uses profitable airports to subsidize smaller facilities. The Spanish government previously blocked the proposal, citing potential negative impacts on Aena's revenue and the national budget.