Rodovias do Tietê's highway bet ended with 15,300 bondholders taking the company

Concessionária Rodovias do Tietê won a 30-year concession in 2009 to operate a 415km stretch of the Marechal Rondon highway in São Paulo state, paying 542 million reais for the contract and assuming an obligation to invest 1.3 billion reais in improvements over the concession period. The company — a joint venture between Italian-Brazilian group AB Concessões and Lineas International Holding — funded itself partly through debentures sold to a vast retail base.

The bet did not hold. The company filed for bankruptcy protection in 2019, with outstanding debentures estimated at 1.5 billion reais (US$277 million) in default. The bondholders were not institutions but 15,300 individual investors and investment funds who had bought the paper.

In October 2021, a Brazilian court authorised the restructuring plan under which that group of 15,300 creditors would assume control of the company. The change of control remained pending authorisation by São Paulo state transport agency Artesp — the regulator holding the keys to the concession itself.

The 2009 bid committed R$542 million up front plus R$1.3 billion of works, a burden the highway's revenues could not service once funding conditions changed.

The debt was structured as debentures, spreading exposure across 15,300 retail holders whose coordination in default became the mechanism for a takeover.

Control of the concession — the company's only real asset — always sat with Artesp, so even a creditor takeover needed the regulator's blessing.

A concession bid priced for perfect traffic and cheap funding hands the asset to bondholders the first time either assumption breaks.

The court-approved plan put the company in the hands of the 15,300 debenture holders, pending Artesp's authorisation of the transfer — an unusual outcome in which Brazil's retail bond market literally took over the highway it had financed.