John Price
Managing Director
AMI
On 26 October 2025, Argentina held a crucial set of mid-term legislative elections which turned out to be more than a routine renewal of seats: they became a pivotal moment for the country’s political and economic trajectory. President Javier Milei’s party, La Libertad Avanza (LLA), scored a clear victory, outperforming expectations and altering the balance of power in the legislature. According to official results, LLA obtained approximately 40.68 % of the vote in the Chamber of Deputies contest, vs around 31.69 % for the Peronist coalition. Simultaneously, markets responded with enthusiasm: the Argentine peso strengthened around 10 % on the day after the results, while stocks and bonds rallied.
This outcome matters for multiple reasons. It signals that the electorate—despite Argentina’s deep economic pain—has endorsed, at least tentatively, Milei’s radical economic agenda. It also reshapes the legislative dynamics, giving Milei a stronger hand but not (yet) an outright majority—to convert electoral momentum into governance. Finally, it sends ripples through Latin America. If Argentina’s remarkable economic turnaround continues, then the new leaders to be elected in Chile, Colombia, and Brazil over the next 12 months will be compelled to experiment with deregulation and libertarian policies as a whole.
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Election Results and Their Significance
The October legislative contest involved renewing half the seats in the Chamber of Deputies and one-third of the Senate (much like US mid-term elections will do in November 2026). For the governing party to win 40% of the vote in Argentina’s mid-term elections, Milei can feel proud, and relieved. In the Peronist stronghold of the province of Buenos Aires—the country’s most populous—LLA succeeded in overturning the Peronist dominance.
From a legislative maths standpoint, LLA’s haul gives it sufficient representation to exercise the presidential veto in the Chamber (approx. one‐third of seats) but not yet an outright majority by itself. According to El País’ charting, LLA reached about 93 of the 129 seats needed for a full majority in the lower house; in the Senate 20 out of the 37 required. Thus Milei has strengthened his mandate but remains dependent on alliances or shifting majorities to pass deeper reforms.
Why Argentines Voted The Way They Did
Economic frustration and desire for change
Decades of erratic inflation, fiscal deficits, currency crises and stagnation have created deep voter fatigue with the status quo. According to the Buenos Aires Times, many Argentines “backed Milei” because they perceived the Peronist era as having failed them, and wanted a disruption. Milei’s campaign explicitly positioned itself as a repudiation of traditional Peronism and an embrace of “shock therapy” markets. His narrative of “end the decadence” resonated.
Messaging and coalition of supporters
Milei’s communication style—polarising, populist, emphasizing freedom and markets—appealed to newer voters and segments of the middle class and youth. At the same time, low voter turnout (around 67-68 %) suggests that many Peronist‐leaning or poorer voters remained disengaged—thus meaning that the “mobilized minority” had outsized impact.
Weaknesses in the opposition
The Peronist coalition (Fuerza Patria) failed to adapt. Their structures, while still strong locally, appear fractured at the national level.
Symbolic geography and districts
The fact that Milei won the province of Buenos Aires was particularly significant: this region alone covers roughly 40 % of the electoral roll and has been a bedrock of Peronism. Reversing its outcome signified both geographic and symbolic change.
Market Reaction and Economic Implications
The immediate market response was dramatic. The peso rallied about 10 % against the U.S. dollar in early trading following the results. Local equities and bonds likewise surged: stocks and bonds rose sharply on Monday, as investors interpreted the result as supportive of the reform agenda.
Why did the markets respond so positively? The election outcome reduced a key risk-premium: the risk of parliamentary gridlock or complete policy stalemate. A stronger Milei bloc increased the odds of structural reforms—especially currency, inflation and fiscal policies. Also, international actors sounded easing: for instance, foreign‐owned funds and multilateral lenders may feel more confident backing a politically strengthened executive.
At the same time, the improvements are very contingent. The peso’s rebound reflects expectation rather than delivered results. Milei still faces an economy scarred by inflation, low growth, weak employment creation, currency fragility and large public debt. The reform agenda is ambitious—and many of the policy tools will have social costs.
Key economic themes for the upcoming period include:
- Currency regime and inflation: Argentina has historically suffered recurring hyperinflation and exchange-rate black markets. A stronger mandate gives Milei more space to attempt radical currency reform (for instance, dollarization or single currency regime) though such steps remain politically fraught.
- Fiscal consolidation and subsidy cuts: Milei has pledged sweeping cuts to public spending, privatizations and reduced subsidies. Markets expect execution. But socially, these adjustments will sting and thus polemic.
- Foreign investor confidence and financing: With markets cheering, Argentina may have better access to financing and rollover of debt—but only if credibility is sustained.
- Growth and employment: Beyond inflation control, the economy must deliver job creation and inclusive growth to secure Milei his political base. Many Argentines remain skeptical of reforms that only shrink the state but don’t deliver jobs.
Thus, while the market reaction is optimistic, the medium‐term track is full of conditionalities. A strong electoral outcome is only a necessary but far from sufficient condition for successful reforms.
Governance, Risks and Strategic Implications
Having won strongly but without an outright majority, Milei confronts a governance puzzle: how to convert electoral momentum into durable policy change. Challenges remain:
- LLA still needs allies. It lacks a full majority in either chamber. This forces Milei to build coalitions, negotiate with provincial governors and possibly moderate his agenda.
- Mid‐term outcomes notwithstanding, Argentina remains institutionally fragile—with a highly decentralised federal system, strong provincial interests, and entrenched networks of patronage. Roadblocks remain.
Political and social risks:
- The depth of reforms proposed (radical cuts, currency reform) may trigger backlash: social unrest, protests from public sector workers and other unions, and redistributional conflict. If growth fails to follow, the political legitimacy of the reforms could crumble.
- Credibility vs. realism: Tightening fiscal policy and liberalizing markets may cause short‐term pain: unemployment, recession, business closures. The electorate has low tolerance for prolonged decline.
- Turnout and mandate: Although LLA won comfortably, the overall turnout was about 67-68 %—the lowest since the return of democracy. The fact that many voters abstained weakens the mandate somewhat and suggests underlying disengagement.
- International risk: Argentina remains exposed to global shocks, commodity price changes, currency crises, and financing constraints.
Strategic implications domestically and regionally:
From a domestic lens, Milei’s victory may trigger a re-shaping of Argentina’s political spectrum: Peronism may be weakened further, while the centre-right libertarian agenda advances. The split between moderates (e.g., the old party PRO) and radical libertarians will frame the next phase of Argentine politics.
Regionally, Latin America watches closely. Argentina’s pivot—if successful—may embolden similar reform-oriented governments, or conversely, failed Argentine reforms could spark push‐back from left and center‐left movements across the hemisphere. Argentina is, once-again, a high-stakes bell-weather market.
Analytical Reflections: What This Means for the Reform Agenda
1. Reform sequencing and communication matter
Winning the election gives Milei a window of opportunity—but windows can close fast if the economy collapses or reforms are seen as unfair or chaotic. A credible strategy would involve clear sequencing: first stabilize inflation/currency, then fiscal consolidation, followed by growth reforms (investment, privatization, deregulation). Mis-sequencing could spark backlash.
2. Social inclusion and employment must not be ignored
Markets favour austerity and liberalisation—but electorates react to job losses, business closures and inequality. If the reforms shrink the state but fail to boost opportunity, anti-incumbent sentiment will grow. Milei must pair liberalisation with visible opportunities for employment and growth. Without growth, legitimacy falters.
3. Institutional alliances and regional balance
Despite the win, Milei lacks full control. He will need to cultivate alliances with moderate governors and parties, especially those outside his core libertarian base. In Argentina’s federal system, provincial cooperation matters for reform rollout (in infrastructure, energy, mining, etc.). He cannot govern solely through presidential fiat.
4. External financing and macro scrutiny
Argentina remains one of the more volatile economies globally. Successful reforms will depend on external financing, credible currency policy, and investor confidence. A misstep could regenerate high inflation or currency collapse, reversing the current market optimism quickly. Analysts should track foreign exchange reserves, debt roll-over, bond spreads, inflation expectations, as these will determine the sustainability of the rally.
5. Implications for Argentina’s natural-resource strategy
Milei’s victory may open new opportunities in mining, energy, and investment law. His liberal agenda envisages deregulation, privatization, and opening to foreign capital. If these reforms advance, foreign investors could find easier entry into (and exit from) sectors such as lithium, copper, nickel, natural gas in Argentina. However, these opportunities come with risk: regulatory inconsistency, community resistance, and macro instability remain.
Conclusion & Next Steps
The 2025 mid-term legislative elections in Argentina present a noteworthy turning point: President Javier Milei’s party achieved a stronger-than-expected result, the markets responded positively, and a reform window has opened. Yet the challenges ahead are formidable: translating electoral victory into sustainable governance, executing reforms without derailing growth or provoking social backlash, and maintaining institutional stability in a historically unstable macro‐environment.
For stakeholders—investors, policy-analysts, resource-developers, and international partners—the message is clear: Argentina is re-entering the “opportunity zone” of Latin America but also the “risk zone”. Reform momentum alone is not enough; competency in execution, coalition building, credible macro policy and social legitimacy will determine whether the window becomes a lasting transformation or a fleeting giddiness.
Many firms were waiting on the sidelines before defining their Argentina strategy, pointing to the mid-term elections as an inflection point. Now, you may feel compelled to move forward with your firm’s Argentina investment plans. Before you do, consider consulting with AMI to help answer the vital questions that need addressing before you commit to investing in Argentina.
