The blue-chip swap rate fell back two cents to 13.17 pesos, after gaining 12 cents on Friday.
The informal rate of the US currency traded three cents higher at 14.68 pesos in a quiet market. On Friday, it fell five cents last Friday, amid concern over government controls in underground exchange houses.
The official rate closed half a cent higher at 8.51 pesos in Buenos Aires City banks and foreign exchange offices.
The stock exchange rate, meanwhile advanced seven cents to 13.67 pesos today.
Source: Buenos Aires Herald