Brazil Telecom Giant Oi Reports R$ 36.4 Billion Loss in Final Audit

The final chapter of one of Brazil’s most spectacular corporate collapses has drawn to a close with staggering numbers. Oi S.A., the telecommunications company once championed by the federal government as a national giant capable of competing on the global stage, reported a net loss of R$ 36.4 billion ($6.6 billion USD) for the fiscal year 2025. The massive deficit, detailed in a heavily delayed financial report released on October 7, 2026, reverses a paper profit of R$ 9.61 billion recorded in 2024.

The financial wreckage was accompanied by a severe rebuke from independent auditor PricewaterhouseCoopers (PwC). In its review, PwC issued an adverse opinion, stating that Oi’s financial statements failed to comply with accounting standards required for entities undergoing liquidation. According to the auditors, the company’s balance sheet, operating performance, and cash flows do not accurately present its true financial situation.

Oi’s downfall is deeply tied to the shifting tides of Brazilian economic policy. Founded with heavy backing from state-owned development banks and pension funds during the late 2000s, the company was designed to be Brazil's flagship telecom provider. However, it was quickly weighed down by massive debt, regulatory obligations to maintain obsolete landline infrastructure, and a series of troubled mergers. After entering its first bankruptcy protection process in 2016, the company cycled through a second restructuring in 2023, but ultimately could not generate enough cash to cover its mounting liabilities.

The final blow came in August 2026, when the Rio de Janeiro State Court of Justice (TJ-RJ) officially confirmed the company's bankruptcy. Following the judicial order, B3, Brazil’s primary stock exchange, suspended trading of Oi's shares and completed their formal delisting and removal from the exchange in September 2026. The R$ 36.4 billion loss reported in the final balance sheet was largely driven by a R$ 33.1 billion negative financial result, caused by the legal requirement to restore Oi's renegotiated debts back to their original nominal values upon the declaration of bankruptcy.

What it touches

While Oi's common and preferred shares (OIBR3, OIBR4) have already been completely removed from the B3 exchange, the final liquidation process continues to impact major financial institutions. Large Brazilian banks and international creditors holding the company's remaining nominal debt face steep write-downs. Additionally, the transition of Oi's remaining fiber-optic and corporate assets to buyers like V.tal and regional providers will reshape the competitive landscape of Brazil's telecommunications sector.