Itaú Surges: Bank Overtakes Petrobras to Become Most Valuable Company on Brazilian Stock Exchange

Written by Sara Aquino

Published on 06/12/2025 at 10:33

Foto: IA

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Itaú Surpasses Petrobras and Becomes the Most Valuable Company on the Brazilian Stock Exchange with a Rise of R$ 161 Billion. Understand the Historic Turnaround.

Itaú surpasses Petrobras and becomes the most valuable company on the Brazilian stock exchange after registering a significant increase in its market value in recent weeks.

The movement, confirmed on Friday (5) by survey from Einar Rivero, founder of the Elos Ayta consultancy, shows what happened: a historic position swap in the B3 ranking.

The protagonist of this turnaround is Itaú Unibanco, which consolidated its rise starting from November 28.

ARTICLE CONTINUES BELOW

Itaú Soars in Market Value and Opens Advantage Over Petrobras

The most symbolic moment of this turnaround occurred on November 28, when Itaú ended the day valued at R$ 426.9 billion, about R$ 5 billion above Petrobras’ R$ 421.5 billion.

In the following days, the bank further increased its advantage, reinforcing the narrative that Itaú surpasses Petrobras and becomes the most valuable company on the Brazilian stock exchange.

On Thursday (4), Itaú reached R$ 443.1 billion in market value, opening a gap of R$ 10.1 billion over the R$ 432.9 billion of the state-owned company.

This performance placed the bank at the top of the B3 for the fifth consecutive day, totaling ten trading sessions in 2025 with leadership over the oil company.

Opposite Results: Itaú Rises While Petrobras Loses Value

The recent trajectory of the two giants shows completely different behaviors.

Petrobras accumulated losses of R$ 57.4 billion in market value, influenced by sector volatility, macroeconomic changes, and political debates.

On the other hand, Itaú advanced R$ 161.9 billion in the same period, bolstered by solid financial reports, a perception of greater predictability, and lower exposure to external variables.

These elements reinforce the scenario in which Itaú surpasses Petrobras and becomes the most valuable company on the Brazilian stock exchange.

Itaú Stands Out Internationally and Entered the Global Ranking

Even with the achievement on the B3, Itaú also makes its mark on the international scene.

According to the website Companies Market Cap, the bank ranks as the 245th most valuable company in the world, just behind Canadian Scotiabank and American Moody’s.

This position reinforces how the Brazilian bank has evolved on the global map of major corporations.

Dispute with Nubank Intensifies Financial Leadership in Latin America

The rivalry, however, is not limited to Petrobras. In recent months, Itaú and Nubank have been involved in an intense dispute for the title of the most valuable bank in Latin America.

In October, Nubank surged to US$ 76.97 billion, temporarily becoming the largest financial institution and the largest company in the country.

At that moment, it surpassed not only Itaú but also Petrobras.

Thus, leadership changed again in February when Nubank’s shares plunged more than 15% in a single day, returning the top position to Itaú.

Later, in May, Nubank regained first place by reporting a profit of US$ 378.8 million, being valued at around R$ 297 billion.

As of the morning trading session on this Friday, Nubank holds the second place among Brazilian companies, also ahead of Petrobras.

Still, the recent movement confirms that Itaú surpasses Petrobras and becomes the most valuable company on the Brazilian stock exchange.

Itaú Surges: Bank Overtakes Petrobras to Become Most Valuable Company on Brazilian Stock Exchange

Itaú Surpasses Petrobras and Becomes the Most Valuable Company on the Brazilian Stock Exchange with a Rise of R$ 161 Billion. Understand the Historic Turnaround.

Itaú Soars in Market Value and Opens Advantage Over Petrobras

Opposite Results: Itaú Rises While Petrobras Loses Value

Itaú Stands Out Internationally and Entered the Global Ranking

Dispute with Nubank Intensifies Financial Leadership in Latin America

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Itaú Surges: Bank Overtakes Petrobras to Become Most Valuable Company on Brazilian Stock Exchange

Itaú Surpasses Petrobras and Becomes the Most Valuable Company on the Brazilian Stock Exchange with a Rise of R$ 161 Billion. Understand the Historic Turnaround.

Itaú Soars in Market Value and Opens Advantage Over Petrobras

Opposite Results: Itaú Rises While Petrobras Loses Value

Itaú Stands Out Internationally and Entered the Global Ranking

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