Going forward, Mexican voters will now elect judges at every level, dramatically restructuring the third branch of government.

Mexico's judicial reform has triggered investor concerns about uncertainty over the rule of law and the strength of the government's institutions, yet with the reform now priced in, some analysts argue there may be buying opportunities forming.

"The corrupt judges – are they going to continue defending foreign companies that come to loot, rob and affect the economy of Mexicans?” asks Andrés Manuel López Obrador (AMLO). The outgoing Mexican president’s typically warm welcome to international investors comes as his governing Morena party consolidates power.