
Peso Briefly Exceeds Exchange Rate Range
On September 17, local time, the Argentine Peso briefly hit 1474.50 against the U.S. dollar during trading, surpassing the upper limit set under the International Monetary Fund (IMF) agreement. Although the central bank later emphasized that internal calculations showed "no breach," the intervention by using $53 million from foreign reserves that day highlighted the increasing pressure on the foreign exchange market. This marked the first direct operation under Milei's government’s new exchange rate framework, which the market interpreted as a forced stabilization measure.
Government Faces Dilemma in Forex Policy
According to the agreement between Argentina and the IMF, the exchange rate range will increase by 1% each month to provide some flexibility. However, the gap between market expectations and actual trading prices is widening. Analysts believe that the central bank’s sole reliance on reserves to “defend the range” is unsustainable, especially given Argentina’s limited reserves.
Strategists at Swiss asset management company Vontobel noted that if the central bank insists on maintaining the current framework, it may engage in a "war of attrition," which could deplete reserves and undermine confidence in the financial markets.
Tightening Forex Control Measures
To curb dollar demand, the Milei government has recently implemented stricter control measures. Commercial banks are restricted in expanding their foreign exchange positions at the end of the month, and brokers are prohibited from using peso financing channels to increase dollar assets. The essence of these regulations is to prevent market participants from exploiting loopholes for arbitrage, aiming to stabilize domestic currency demand.
However, economists in Buenos Aires have pointed out that although tighter regulations can slow the pace of devaluation, they increase the operational costs of the banking system and capital market. The operational space for financial institutions is compressed, and the demand for dollars by businesses and investors has not disappeared.
Market Concerns Over Policy Sustainability
There is widespread skepticism about whether short-term forex interventions can truly stabilize the situation. StoneX strategists emphasize that Argentina is currently in an election cycle, where political uncertainty and economic pressure are intertwined, leading investors to possibly adopt a stronger aversion to the peso.
Simultaneously, the central bank has recently forced banks to take on more government debt in bond issuances to absorb market liquidity. While this has supported the peso to some extent, it has also increased the risk burden on the financial system.
Interplay of Political and Economic Pressures
This incident of the peso reaching its peak coincides with the Milei government's push for "shock therapy" reforms. There is widespread attention on the election progress in Buenos Aires Province, which accounts for 40% of the national population. The election outcome will be a crucial indicator of public acceptance of government economic policies. If the local election results are unfavorable, the government's policy credibility may suffer further.
Looking Ahead
In the short term, whether the central bank continues to intervene or chooses to adjust the upper limit of the trading range will be the market's focus. In the long run, if Argentina cannot achieve improvements in fiscal policy and industrial structure, relying solely on controls and reserve defenses will find it difficult to stabilize the currency.
Investors believe that this incident highlights the challenging situation of Argentina's forex policy: it needs to prevent rapid currency depreciation from causing further inflation while also avoiding over-depleting already limited reserve resources. The policy direction and election results in the coming weeks will determine whether the peso can regain a stable position within the range.

