Argentine stocks, bonds and the peso rallied on September 22, 2025, after US Treasury Secretary Scott Bessent offered Washington’s support for the country’s stabilization effort. Bessent said options under consideration included a currency swap and direct purchases of Argentine currency, Reuters reported. This was a pledge of possible intervention, not yet a signed swap or a completed purchase. Its immediate effect, however, was to interrupt a sell-off that threatened the credibility of President Javier Milei’s exchange-rate system before October’s congressional election.
According to Reuters, Argentine international dollar bonds rose more than six cents on the dollar that Monday. An index of Argentine companies traded in the United States gained 14%, while the local benchmark rose 7%. The peso strengthened 4.7% to 1,408.5 per dollar, after the central bank had used more than $1 billion of reserves the preceding week to defend it. Each figure describes that trading session, not a durable recovery. Bond yields remained high and uncertainty over the currency was still severe.
From provincial defeat to dollar squeeze
The immediate backdrop was Milei’s 13-point defeat in the September 7 Buenos Aires provincial election and corruption allegations arising from unauthenticated disability-agency recordings. Reuters reported that Argentine international bonds had lost more than 20% during 2025 through the previous Friday and that the peso had pressed against the weak edge of the exchange-rate band. Investors questioned whether the president could win enough seats in October to defend austerity and pursue further deregulation. Political risk became currency risk because the market doubted the authorities’ ability to supply dollars at the prevailing exchange rate indefinitely.
The government also suspended export taxes on grains through the October election, Reuters reported, seeking to encourage agricultural exporters to sell and bring dollars into the system. That provided another potential near-term source of supply, but did not guarantee that exporters would liquidate enough to solve a structural reserve problem. Argentina’s agricultural sector was thus involved in the currency defense as well as in the fiscal trade-off: reducing export duties might bring foreign exchange forward while forfeiting tax revenue.
A backstop with unanswered terms
Bessent said US action, if taken, would be large and forceful, Reuters reported, but the size, conditions and mechanism remained unspecified on September 22. President Donald Trump’s political support for Milei made the announcement unusually consequential for Argentine traders. A currency swap would provide potential dollar liquidity on terms distinct from outright aid, while direct Treasury peso purchases would involve another intervention. Those were possibilities, not equivalent commitments. Treating the promise as money already transferred would overstate what Washington had done.
Analysts quoted by Reuters described the support as a circuit breaker and warned it might offer only temporary relief. PIMCO’s Pramol Dhawan argued that Argentina was not generating enough dollars at the current exchange rate and might ultimately need an adjustment. Gramercy’s Kathryn Exum said a US backstop and the export-tax suspension could help the authorities manage the currency band until the midterms, but cautioned about the pace of reserve use. Their concerns pointed beyond election day: stabilizing the price of the peso for several weeks was not the same as accumulating reserves over years.
The rally gave Milei breathing space, not a verdict on the long-run sustainability of his economic model. The next concrete tests were whether Washington would turn the pledge into a defined instrument, how many dollars Argentina’s grain exporters would supply, and whether the central bank could defend the band without a continued drain on reserves. In an election campaign, market relief was politically useful; its durability still depended on transactions and policy choices not yet made.
