Nu Holdings, the digital banking giant known as Nubank, reported a net profit of US$871 million for the first quarter of 2026, a 41% increase year-on-year, yet the figure landed well below the US$936 million analysts had anticipated. From São Paulo, the miss was attributed to a sharp rise in provisions for loan losses as the company’s credit portfolio expanded by 40% to US$37.2 billion. The profit squeeze underscores a familiar tension across emerging-market lenders: rapid credit growth commands higher reserves, eating into near-term earnings. While gross profit reached US$1.88 billion, up 27%, the contribution from credit income relative to float income narrowed, with the latter accounting for 41% of the total.

A strikingly different picture emerged from Brazil’s mining sector. Sigma Lithium, the São Paulo state-based miner, achieved record profitability in the same period, with net profit soaring 136% to US$11.1 million. Revenues dipped 11% to US$42.2 million as lithium prices moderated, but the company successfully accelerated its operations following a restructuring last October. Selling 23,000 tonnes of lithium oxide concentrate at an average of US$1,790 per tonne, Sigma halved its debt and improved margins, signalling that disciplined cost management can outweigh sluggish commodity markets. Viewed from Brasília, the contrast with Nubank’s provisioning woes highlights a widening divergence between creditor-financed growth and asset-backed earnings.

Across the Andean region, Colombia’s corporate results painted a more fragmented landscape. Corficolombiana posted solid revenues of $3.4 trillion (Colombian pesos), underpinned by infrastructure and energy divisions, with EBITDA of $1.4 trillion. Grupo Bolívar recorded a 56% surge in operating revenues to $759.9 billion, yet its net profit contracted sharply — a pattern repeated at Banco Mundo Mujer, where net income fell 4.4% despite a 29% rise in operating revenues. The culprit, analysts in Bogotá note, was a 73% leap in the tax burden. Promigas, the gas utility, held steady with revenues of $1.77 trillion, while home-improvement retailer Sodimac grew sales by 14% to $1.8 trillion, improving its gross margin to 30.3% through tighter expense control.

Looking ahead, the first-quarter results reveal a region contending with asymmetrical pressures. Nubank’s provisioning increase may be a warning shot for fintech lenders racing to capture market share in Brazil’s still-underpenetrated credit market, even as traditional Colombian banks grapple with fiscal drag. Sigma’s performance offers a counter-narrative: if lithium demand stabilises, miners with lean balance sheets could absorb price volatility more nimbly. For Colombia’s diversified holdings, the real test will be whether operational efficiencies can offset a tax regime that shows little sign of easing. The coming quarters will determine whether these early signals presage a broader recalibration — or a new phase of bifurcated growth.