Nubank's £10 billion Monzo bet triggers market rout, fiscal chaos looms.

Nubank's 10% share-price drop on the Nasdaq on Monday encapsulates, in a single market move, the tensions defining Brazil's current moment: the global ambition of its most dynamic companies colliding with investor skepticism in a domestic environment increasingly laden with fiscal, electoral, and regulatory noise.

Nubank, whose shares trade on the Nasdaq under the ticker NU, lost roughly US$6 billion in market value after the Financial Times and Sky News confirmed that David Vélez's bank is in talks to acquire Monzo, the UK digital bank with 16 million customers, for a sum that could reach £10 billion. The deal, which would involve a combination of cash and stock, would be the largest acquisition in the fintech's history and would represent a bet on European expansion at a moment when the group is still in the early stages of its US entry. The market's reaction was one of immediate distrust. Fund managers heard by Brazil Journal signaled that the price looks steep — Monzo had been valued at £5.2 billion in its last funding round, in 2024 — and that the UK's regulatory complexity poses an execution challenge for a company without experience in large-scale M&A. With today's drop, Nubank is down 21% over the past twelve months, trading at around US$60 billion in market cap.

The turbulence surrounding Nubank comes in a session already adverse for Brazilian assets. The dollar closed up 0.78%, at R$5.225, pressured by a combination of global risk aversion and domestic electoral uncertainty. Oil advanced again after Donald Trump rejected an Iranian ceasefire proposal, reopening the debate over supply through the Strait of Hormuz and pushing Brent above US$100 per barrel. For Brazil, more expensive oil has an ambivalent effect: it benefits exports but feeds inflationary pressures and makes it harder to sustain diesel subsidies, which the Ministry of Finance kept at R$2.12 per liter for October. The Ibovespa fell 0.95% on the session, with the pharmacy sector posting the worst performance of the day after Mercado Livre announced the expansion of its pharmaceutical operation to include prescription-retention products, among them GLP-1 pens such as Ozempic and Mounjaro. Shares of RD Saúde fell 5.5%, Pague Menos 7.7%, and Panvel 6%.

The macro backdrop continues to deteriorate. The Focus Bulletin released by the Central Bank showed that economists raised their inflation projection for this year for the second consecutive week, while also cutting their GDP growth estimate. The BCB's survey of business executives confirmed the same vector: higher inflation expectations for 2027 and growing pessimism about current conditions. The most telling data point of the day came from the National Treasury: the share of federal public debt tied to the Selic hit a new all-time high in August, for the second straight month, signaling that the market is increasingly reluctant to hold fixed-rate or inflation-linked paper amid a fiscal trajectory that President Lula insists on downplaying. In an interview with BandNews, Lula said the rise in public debt, which has already reached 80% of GDP, "does not cause panic" given the country's level of dollar reserves — an assessment that independent economists, such as columnist Samuel Pessoa, vigorously contest, arguing that without fiscal adjustment the pace of debt expansion could exceed 4% of GDP annually over the next four-year period.

The election, whose first round is set for October 5, permeates virtually every economic-policy decision. The government extended the Desenrola Adimplentes program by another 30 days, pushing the debt-renegotiation deadline to October 26 — one day after the runoff. The ban on betting sites, announced Friday by provisional measure, adds another layer of complexity: bettors have R$1.7 billion deposited on these platforms and until October 5 to withdraw. The AGU has already filed a public civil action against 17 operators seeking a minimum indemnification of R$1 billion. Companies in the sector, in turn, have appealed to the STF to try to suspend the provisional measure. Added to other electoral initiatives, the government's giveaways now total R$215.6 billion, according to a Folha de S.Paulo survey. Citi, meanwhile, said it sees Flávio Bolsonaro as the frontrunner and initiated a long position on the real, betting on a possible post-electoral rally.

In the productive sector, signals are mixed but skewed to the downside. FGV's Industry Confidence Index fell 2.4 points in September, to 91.3, with declines in 16 of the 19 segments surveyed — the third consecutive monthly drop. The expectations sub-index hit its lowest level since November 2025, suggesting a slowdown in activity in the second half. Tighter financial conditions — captured by an indicator aggregating oil, currencies, equities, and local and external interest rates — reinforce the brake on economic activity, according to consultancy Tendências.

On the flip side, the external sector offers some relief. Oil exports totaled 10.1 million tons through the fourth week of September, on track to break the all-time monthly record. IBP president Roberto Ardenghy warned, however, that the window of opportunity is short and that Brazil needs to accelerate exploration — including in the Foz do Amazonas basin, where the confirmation of oil has attracted global majors, though regulatory uncertainty remains an obstacle. In the truck industry, Chinese manufacturer XCMG signed a R$500 million contract to supply 251 electric trucks to Brazil, a demonstration that Chinese appetite for the Brazilian automotive market goes beyond passenger vehicles — and that the barriers imposed by the US and the European Union on Chinese products have the side effect of redirecting trade flows to emerging markets.

In the week ahead, IBGE and Caged employment data will be the most immediate thermometer of the health of economic activity. Outside Brazil, US JOLTS figures and developments in Middle East negotiations will set the pace of global risk aversion. And, overlaid on all of this, the market will monitor any government signaling on the Selective Tax rate — a centerpiece of the tax reform that the Planalto fears announcing before the runoff, running the risk of paralyzing one of the most important reforms passed by Congress in decades.