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Analyzing the Argentina US Swap deal

Using our Swap menu item for subscribers

November 14th, 2025

Introduction

About a month ago, Argentina's Central Bank announced it had signed a $20 billion currency swap deal with the US.

Swap deal

A currency swap means Argentina will deliver ARS to the US in exchange for USD at certain future dates. It is in essence a set of future forwards with progressive maturities. Unfortunately, no specific details on the agreement have been divulged. We don’t know if the swap consists of quarterly or yearly transactions nor how many transactions were scheduled to take place.

We do know that interest rates in Argentina are much larger than those in the US and that would make arbitrage free forward contracts reflect higher future ARS/USD exchange rates. US Treasury Secretary, Mr. Scott Bessent declared that the US profited from the deal), that would mean more favorable exchange rates for the US in the future, implying not so favorable for Argentina.

Swap analysis

A swap for that amount of USD makes sense because in 2024 Argentinian exports to the US totaled 6.5 billion USD, while US exports to Argentina amounted to 9.2 billion USD. Therefore, the swap would basically cover 2 years of Argentine imports from the US or four years of approximately 50% of the value of its US imports.

As details are revealed we could, of course, use Finnugget's Swap menu item, available to subscribers, to find either the per year exchange rates or an equivalent fixed exchange rate for any set of periodic transactions. Assuming, of course, that there are risk free interest rates for both economies available for all the required maturities, something not easily found in the case of Argentina due to its history of defaults and high inflation rates. Nonetheless it is easy to explore prevalent conditions as a hypothetical example.

Hypothetical example

If a swap is set for 4 years with 5 billion USD per transaction and assuming the local risk-free interest rates in table 1, we get the results shown in figure 2.

Interest rates
YearArgentinaUS
129% 3.65%
230% 3.57%
331% 3.57%
432% 3.6%
Table 1. Risk free interest rates in hypothetical example
Hypothetical swap details

The Amounts are billions and show ARS corresponding to 5 USD per each of the following four years. Dividing ARS by 5 (billion) we get the expected swap exchange rate for each of the following years: 2,240 ARS per USD in one year, up to 4743.83 for the fourth year (Implying a 163.5% devaluation rate in the four-year period).

Notice that the equivalent fixed exchange rate for the whole four-year period is 15,406.487/5 = 3,081.3 Such a hypothetical agreement would hardly be beneficial for Argentina. They actually need to revert the devaluation trend shown by its currency's exchange rate with respect to the USD over the past twenty years. See figure 3.

ARS / USD over the past twenty years.

Conclusion

Unfortunately for Argentinians, the purchasing power of its local currency in terms of other currencies has been steadily losing value. That means acquiring local assets becomes cheaper for foreigners among many other implications. Hopefully, that negative trend will someday be reversed.

Let us know what you think. Until the next post!