From the report 'Panorama of Guatemalan Banks' by Fitch Ratings:

Local Majority Banking System: The largest banks (70% of loans in the system) belong to local shareholders. At the same time, foreign-owned banks increased their share after Bancolombia acquired the controlling stake in Banco Agromercantil de Guatemala, S.A. (BAM).

Exposure to Guatemalan Sovereign Debt Continues: The sovereign rating is limiting the ratings of Banco Industrial, S.A. ( BI), Banco G & T Continental, S.A. (G & TC), BAM and Banco de Desarrollo Rural S.A., The largest banks have significant exposure to government debt instruments in respect to their assets and equity. In addition, business volumes are heavily concentrated in the country.  

See full report (In Spanish)

More on this topic

New Guatemalan Bank in Panama

February 2018

The financial group G & T Continental has obtained a general license to expand the services it provides in Panama, where it plans to strengthen its corporate and private banking area.

The financial institution started operations in Panama in July 2008 under the name of Banco Financia, S.A. (BMF) and in 2009 changed its name to Banco G & T Continental (Panamá) S.A.

The Largest Banks in Guatemala

May 2016

According to Fitch low capitalization indicators continue to reflect a structural weakness, with a potential reduction in the net interest margin and relatively high dividend payments.

From a statement issued by Fitch Central America:

Largest banks in Guatemala: Sovereign Risk Puts Pressure on Ratings

Fitch's Analysis of Banking in Guatemala

July 2015

The five largest banks account for 82% of total assets in the system, three of them focusing on the corporate credit segment and the other two on retail banking.

From the report by Fitch Ratings "Panorama of Banks and Guatemala"

Largest banks of Guatemala: Related to the Sovereign Ratings

65% of Guatemalan Deposits in Just Three Banks

April 2010

From all the resources deposited in the Guatemalan banking system, 65.3% is concentrated in banks Industrial, G&T Continental and Banrural.

The figure corresponds to February 2010. According to the Banking Superintendence, in the same month of 2009 these banks had 64% of the deposits, out of a total 18 banking institutions in Guatemala.