Election jolt fades as Brazil's fiscal math fails to hold investors' conviction.

The result of the first round of Brazil's presidential election triggered the largest daily foreign capital inflow ever recorded on B3 — R$10.6 billion in a single session, according to Dados de Mercado — pushing the Ibovespa above 200,000 points for the first time and sending the dollar down to R$4.98 at Monday's open. But the initial euphoria has already given way to a more complex reality: the correction arrived on Wednesday, with the dollar closing up 0.74% at R$5.014 and the Ibovespa retreating, pressured both by external conditions and by mounting doubts over whether the fiscal adjustment pledge from Flávio Bolsonaro (PL) — who led the first round over Lula (PT) — is mathematically feasible.

The sitting administration's Finance Minister, Dario Durigan, said he had "some difficulty understanding this euphoria," a rare sign of public discomfort with the market's direction. The irony did not go unnoticed: while the Lula government questions the rationality of the rally, it is the opposing candidate's team scrambling to fill in the details of the economic program that so enthused investors. Flávio Bolsonaro's team is studying a fiscal package focused on containing the federal government's mandatory spending — pensions, healthcare and education — to enable an initial adjustment equivalent to 2% of GDP, or roughly R$250 billion. Economist Marcelo Kayath, former Credit Suisse director tapped as a potential Finance Minister in a Flávio administration, telegraphed his stance by criticizing the "Posto Ipiranga" model — the super-minister with full autonomy — associated with Paulo Guedes in 2018, signaling a preference for a more collegiate decision-making structure.

Valor Econômico raises seven questions suggesting that the math known so far may be insufficient to stabilize gross debt, already at 82.9% of GDP and up 4.2 percentage points between January and August alone. Asset repricing reflects a bet, not a certainty. Bradesco BBI, which named Petrobras, Cosan and Compass as its top picks under a Flávio government scenario, raised Petrobras' price target from R$52 to R$62 by year-end 2027 — anticipating divestitures, cost reductions and improved corporate governance. Export-oriented sectors such as mining, steel and pulp and paper, meanwhile, sat out the rally, penalized by the real's appreciation: Suzano fell 5.93%, Vale retreated 2.40% and Embraer lost 4.17% in the two sessions following the first round.

The electoral contest is also reshaping the debate on tax reform, which until last week appeared immune to any revision. The Centro de Cidadania Fiscal (CCiF) went public to argue that not even a constitutional amendment can repeal it, as it is anchored in the Constitution's immutable clauses. Even so, both the government and the opposition are discussing postponing the replacement of federal taxes scheduled for January 1 — leaving companies in a holding pattern. Minister Durigan, for his part, took the opposite tack by defending split payment with unusually aggressive rhetoric, stating that opposing the system amounts to "favoring those who commit fraud." In parallel, Folha de S.Paulo revealed that the government withheld R$731.9 million from the 2027 CVM budget as a reserve — defying a ruling by Supreme Court Justice Flávio Dino, who had ordered the funds released — an institutional friction that exposes tensions between the Executive and Judiciary branches in the middle of an election campaign.

In the productive sector, the data tell diverging stories. Anfavea revised its 2026 vehicle sales projections upward, from 12.1% to 15.2%, with the Brazilian market poised to surpass 3 million units for the first time in twelve years — though domestic production is not keeping pace, with Chinese importers taking a growing share of sales. By contrast, manufacturing industry revenue fell 3.5% in August, according to CNI, bringing the eight-month decline to 0.2%. Meat exports took a concrete hit from restrictions imposed by China and the European Union, with revenues down 15% and volumes down 12% in September — though poultry managed to front-load shipments to the EU before the new restrictions took effect, posting a 3.7% increase in export volume. Coffee, for its part, saw its highest export volume in 20 months in September, at 3.93 million bags, according to Secex.

Anglo American escalated a regulatory dispute with geopolitical implications by announcing it will shut down its nickel operations in Brazil — located in Goiás — should the European Commission block the sale of the unit to China's MMG, listed in Hong Kong, for US$500 million. The company's director of operations in Brazil presented the position directly to European regulators on Thursday in a closed-door hearing: for Brussels, the issue is the competitive impact on stainless steel markets; for Brazil, the risk is the direct loss of industrial assets and jobs in Goiás.

Petrobras, whose ADRs trade on the NYSE, dominated the government's oil auctions on Wednesday, taking 21 blocks and accounting for 90% of total revenues of R$3.5 billion — cementing its position as compulsory buyer in rounds that, in the pre-salt segment, saw little competition, with six areas receiving no bids. BNDES, meanwhile, is negotiating financing and an equity stake in a multibillion-real rare earths project in southern Minas Gerais — a strategic bet in a market dominated by China and increasingly critical to global electronics and defense supply chains.

In the coming days, the market is closely awaiting the first Datafolha poll for the second round between Flávio Bolsonaro and Lula, which will determine the degree of conviction with which investors maintain the bets placed on Monday. The math of the proposed fiscal adjustment and the trajectory of trade negotiations with China and the European Union — particularly in the meat sector — will be the other vectors to monitor in a week in which Brazil simultaneously celebrates the euphoria of foreign capital and confronts the structural contradictions that this euphoria has not yet resolved.