In brief
The Supreme Court made the Master caseBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ files public after Fachin gave Mendonça 24 hours to lift secrecy, revealing MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗'s R$ 108 million net contract with the law firm of Alexandre de Moraes's wife.
Mendonça kept the full contents of Vorcaro's phone sealed and the full court decides the procedure on September 15.
What we know
05Verified fact · material
Chief Justice Edson Fachin gave rapporteur André Mendonça 24 hours to lift secrecy on all Master caseBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ files, except information on ongoing inquiries, and the court released the material on September 11, per Agência Brasil, CNN Brasil and InfoMoney.
It is the decision that defines the event.
Verified fact · material
Among the files is the January 16, 2024 contract between Banco MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ and the Barci de Moraes law firm, at R$ 3 million a month for 36 months, R$ 108 million net or R$ 131.3 million gross, for litigation, compliance and proceedings at the Central Bank, Federal Revenue and Cade, per Agência Brasil and CNN Brasil; the two figures are net and gross cuts of the same contract.
Central document in the dispute among justices.
Verified fact
There is also a May 12, 2025 draft between Viking Participações and the firm, on letterhead and unsigned, on the same terms of R$ 3 million for 36 months; the firm says the proposal was not accepted, nothing was signed and the original contract ended with the bank's liquidation, per Agência Brasil; Poder360 had described the Viking contract as R$ 50 million when publishing the full texts on September 1, a distinct cut.
Second contract, with declared divergent figures.
Sources[01]Verified fact
Mendonça denied fellow justices access to the full data extracted from Vorcaro's iPhone, arguing full disclosure with inquiries ongoing would breach the state's duty to investigate, and said he never accessed the device, kept sealed in his office; Moraes and Zanin criticised, and the full court holds an extraordinary session on September 15, per Exame.
The court's internal conflict and next milestone.
Sources[05]Verified fact
DI futures closed September 11 nearly flat, with the January 2028 contract at 13.62% and 2035 at 14.165%, as traders bought rates in the afternoon as protection against weekend news, per CNN Brasil; Valor reported the Coaf flagged US$ 26 million received abroad by Vorcaro on the eve of his arrest.
Market reaction.
Transmission to assets
Market read-through
For the yield curveYield CurveMacroBrazil's market interest rates across maturities, reflected in government bonds, Tesouro Direto and DI futures.Open in the Market Map ↗ and the real, the Master caseBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ has become a source of political premium: the market fears both damage to the Supreme Court and the effect on Flávio Bolsonaro's candidacy, and buys protection before weekends.
For banks, the release of the contracts keeps BTG and the BC in the headlines without a new financial fact.
Portfolio impact
01An open dispute at the Supreme Court and electoral spillover raise the political premium in long rates.
Risk premium, no direct fiscal effect.
What would change the view: Changes if the 9/15 session settles the procedure.
Direction is an explanatory hypothesis, not a forecast or recommendation.
Next signals
What to watch
- The Supreme Court's extraordinary session on 9/15 and the case's procedure.
- Any release of the full phone data to the justices.
- The yield curveYield CurveMacroBrazil's market interest rates across maturities, reflected in government bonds, Tesouro Direto and DI futures.Open in the Market Map ↗'s reaction at Monday's open.
Limits of the reporting
What remains uncertain
- The Viking contract appears as R$ 108 million (unsigned draft) at Agência Brasil and as R$ 50 million at Poder360 on 9/1: cuts of distinct documents.
- Fachin's order is dated 9/11 by CNN and InfoMoney; CNN, in another piece, places the secrecy lifting on 9/9.