Cemig's board elected a new chief executive on May 7, 2026, installing Alexandre Ramos Peixoto, a career CEMIG engineer who spent much of his career at ANEEL, Brazil's electric utility regulator, and had just stepped down as chair of CCEE, the Brazilian Electric Energy Trading Chamber, the clearinghouse that settles the country's merchant power trades. The succession matters because it lands on a company whose first quarter just showed its new strategic center of gravity: the regulated distribution business, which grew adjusted EBITDA 26.7% year over year to R$1,010.4 million, while the merchant trading book swung to a loss on the back of elevated spot prices. The CEO change signals a management layer built to operate inside the regulatory regime rather than around it, and the quarter's financials show the business mix already rotating toward the part of the portfolio the regulator sets the rules for.
The central investment debate is whether Cemig's earnings power is quietly rebuilding around regulated cash flows even as reported results stay flat. Consolidated adjusted EBITDA came in at R$1,788.2 million, down 0.6% year over year. Net income came in at R$979 million, down 5.8%, so the headline print looks like a stalled utility. The decomposition says otherwise: distribution added R$212.6 million of adjusted EBITDA, while trading subtracted R$197.7 million, and the gap between those two numbers is effectively the entire story. The ADR trades as CIG on the NYSE at $2.14 per share. It is priced at roughly 6.7 times trailing earnings, a trailing multiple that reads as the market treating Cemig as a flat-earnings utility paying a decent yield, with a book multiple in line with its regulated asset base. The question is whether that read prices in the distribution inflection.
Three variables decide the argument. First, the distribution tariff review cycle: the current price cap runs until May 27, 2026. The next five-year tariff review, which sets the revenue base for the following half-decade, is the single largest re-rating event in Cemig's calendar. The last review lifted the net remuneration base to R$15,200 million and set a post-tax WACC of 7.43%. Second, the trading book's exposure to the spot market, which in 1Q26 forced CEMIG to buy energy at elevated PLD prices to close short positions, and which is the main source of quarter-to-quarter earnings noise. Third, the dividend and interest-on-equity stream, which the board has been paying out quarterly. The stream includes a R$658 million interest-on-equity declaration in March 2026, plus a further dividend declared at the April annual shareholders' meeting that follows the cap cycle. What would make the market wrong is if distribution keeps beating its regulatory targets, losses stay below the 11.48% cap, and the May tariff review resets the revenue base above the prior cycle's levels; in that case the flat earnings narrative is an artifact of a one-year tariff phase-in, not a structural condition.
The load-bearing risk is that the distribution margin expansion is a one-cycle event rather than a durable trend, and that the trading book keeps consuming the gains in a persistently tight hydrology environment. The falsifiable clock is the next quarterly report in early August 2026, which shows whether the distribution EBITDA step-up held, and the May 2027 tariff review decision, which shows whether the regulator validates the new capital program at the assumed return. Until then, the market is paying Cemig utility prices for a company whose regulated core just posted its best quarter in the tariff cycle.