Tigo has a 37.2% market share and is one step away from taking first place in mobile telephony from the Bolivian National Telecommunications Company (ENTEL), which has a 38.5% market share. Viva, meanwhile, has a 24.2% market share. According to an analysis of the international risk rating agency Fitch Ratings, the main problems that ENTEL faces are associated with strong competition, pressing their profits and to technological changes in industry, which demand heavy investments.