Argentina’s Stock Market Is All about US Dollars

In Argentina’s stock market, investment decisions are based mainly on the behavior of the US dollar/Argentine peso exchange rate. Since 2011, Argentina’s government has introduced several measures that have made this possible.

As an introductory note, Argentina’s economic history has been dominated by a preference to save money in US dollars (USD). This behavior is a consequence of the high inflation crises that the country has suffered, which in turn, has led to a lack of confidence in the local currency, the Argentine peso (ARS).

High inflation periods include the hyperinflation crises of 1975–1976, 1985, and 1989–1990. In these periods, inflation surpassed the 1,000% barrier for the year. The solution for the last period of hyperinflation (1989–1990), as will be explained below, was to anchor the Argentine peso to the US dollar in a one-to-one relationship. Since then, preference for the US dollar has grown. In fact, it is estimated that excluding the Russian population, Argentines hold more US dollars than most of the world. 1

This post is structured as follows. In the first section, I describe the exchange rate policy from 1980 to today. Then, in the next section, I present a deeper analysis of the current exchange rate policy. The third section delves deeper into the core idea of this post — that is, the relationship between the stock market index and exchange rate quote. In the fourth section, I analyze the future of the exchange rate quote and its potential impact in the market. Finally, the last section lists the main conclusions.

Summary of Exchange Rate and Monetary Policies since 1980

To understand the current exchange rate system and its impact on daily investment decisions, it is helpful to go through the different currency regimes that have been present in Argentina since the early 1980s.

June 1982–1990, Crawling Peg: Consisted of a system with a fixed exchange rate, but with periodic (established) devaluations.

June 1990–April 1991, Managed Float: Because of a crisis that included hyperinflation and continued loss of international reserves, the government set up a floating exchange rate system but with important controls.

1991–2001, Fixed Exchange Rate and Convertibility Plan: In April 1991, the Argentina Economy Minister implemented the so-called Convertibility Plan, which included a fixed exchange rate pegged to the US dollar in a one-to-one relationship. Under this plan, every Argentine peso circulating in the economy was backed by international reserves. The high interest rate period, together with an undervaluation of the exchange rate, led to an important loss in commercial competitiveness and internal recession, with deflation that lasted until the end of December 2001.

2002–2011, Managed Float: In January 2002, the fixed exchange rate system was abandoned because of a severe financial crisis and political instability, including the resignation of the country’s president. The Central Bank reserves were diminishing rapidly, and the exchange rate rocketed. A few months after the floating exchange rate was established, the exchange rate went from USD1=ARS1 to USD1=ARS3.

2011 to Present, Managed Float but with Strict Controls: Since October 2011, different government agencies have started to implement strict controls on the purchase of foreign currency. First, the Tax Agency (AFIP, for its initials in Spanish) passed a measure that required every person or entity to justify its income sources in order to be able to purchase foreign currency. Then, other measures followed, as will be explained in the next section.

Why Impose Restrictions on the Foreign Currency Market?

As mentioned in the previous section, since October 2011, the government has had an active role in controlling the exchange rate fluctuations. This involvement was a consequence of the continuous drain of foreign reserves, which was caused by a decrease in the trade balance surplus and an increase in capital flight. After reaching a maximum level in January 2011, foreign reserves have been falling continuously. In addition, the two months before the restrictions on US dollar demand were put into effect had the biggest decreases in the reserves (3.7% in August and 2.8% in September).


It is worth noting that international reserves became an important variable to monitor in March 2012, when the Central Bank law was modified. The main change was introduced through a rule that established a minimum of international reserves that the Board of the Central Bank can set. The reserves that exceed the minimum can be used to pay external debt. By doing this, the board was able to handle this minimum discretionally, and since then, the international reserves have been used to pay the external debt of the national government.

Because international reserves have been used to pay debt, the level of these reserves has been falling month over month. Given this behavior, Argentina’s government started to implement measures to stop the drain. First, importing certain goods was restricted, along with other importing restrictions, such as requiring import licenses. Second, the purchase of foreign currency was restricted, which is the policy that will be analyzed more thoroughly in the following sections.

Initially, the control of foreign currency began with a measure that required every citizen to justify the origin of the funds used to purchase foreign currency, but then, that was followed with other restrictive measures. The following is a list of the measures applied by the government since 2011, when the initial restrictions went into effect:

Source: Own preparation based on El Cronista, La Nacion, and AFIP.

Given the strict and increasing controls, other exchange rates, apart from the official exchange rate, have flourished in the market. Mainly, there are two exchange rates that are market based; others can be calculated by using different variables as described in the next table.


These different exchange rates have quotations that represent gaps of almost 70% versus the official exchange rate. The following table contains the quotes for these different exchange rates as of 30 September 2013.



Stock Market and Exchange Rate, Two Variables Moving Together

After the measures taken by the government to restrict the purchase of US dollars, the exchange rate became one of the most influential variables in stock prices as well as in the Argentine stock exchange index, the MERVAL. The correlation between the blue-chip bond swap exchange rate and the MERVAL increased after each of the measures mentioned earlier were implemented. This effect was present not only in the overall index but also when individual stocks were analyzed, especially for stocks that have American depositary receipts (ADRs) trading in US markets.

For the complete period since the first measure restricting the US dollar purchases was issued (31 October 2011 to 30 September 2013), the correlation between the MERVAL and the “contado con liqui” exchange rate was close to 0.74. It is worth noting that if we take the same time frame but go backward from the day before the first measure was applied (11 December 2009 to 30 October 2011), the correlation was only 0.38.2

As mentioned earlier, the correlation between these two variables increased