B3 S.A. – Brasil Bolsa Balcão

What it is

B3 is Brazil’s financial market infrastructure company. It runs the exchange where stocks, bonds, currencies and derivatives are traded, and it clears and settles those trades.

The company was formed in 2008 from the merger of the São Paulo stock exchange (Bovespa) and the futures exchange (BM&F). In 2017 it merged with Cetip, the main registry for private bonds and over-the-counter contracts.

Today B3 is effectively a monopoly in Brazil. If you want to trade a Brazilian share or register a Brazilian bond, you almost certainly do it through B3.

Who owns it

B3 has no controlling shareholder. It is a corporation with dispersed ownership, a structure known in Brazil as “capital pulverizado.”

Institutional investors hold about 67.7% of the shares. The largest individual holders are typically global asset managers and Brazilian pension funds, but no single group controls the company.

The free float is high, which means ordinary investors can buy and sell the stock easily. B3 is one of the most liquid names on its own exchange.

Who runs it

The chief executive is Gilson Finkelsztajn, who took the role in 2023 after a long career at B3 and its predecessor BM&F. The chairman of the board is Antonio Carlos Quintella.

Finkelsztajn replaced long-time CEO Gilson Finkelsztajn’s predecessor, Edemir Pinto, who led the company through its 2017 merger with Cetip. The board is composed largely of independent directors with backgrounds in finance and regulation.

The money, in plain words

B3 is extraordinarily profitable. For every real of revenue, it keeps about 49.5 centavos as net profit — a net margin of 49.5%, which is exceptional even among exchanges.

For every real shareholders have invested, the company earns about 27.7 centavos a year — a return on equity of 27.7%. That is among the highest in Brazil’s financial sector.

Revenue grew from R$8.92 billion (US$1.7 bn) in 2023 to R$10.07 billion (US$2.0 bn) in 2025, a rise of about 13% over two years (our calculation). Net profit rose from R$4.13 billion (US$806 mn) to R$4.59 billion (US$896 mn) over the same period.

The company carries meaningful debt — about R$14.94 billion (US$2.92 billion) — but its cash generation is strong enough to service it comfortably. The dividend yield of 1.7% looks modest, but B3 also returns cash through buybacks.

At 17.6 times earnings, the stock is priced like a quality franchise. Investors pay up because the business is hard to disrupt and throws off cash.

What it is doing now

B3 has been expanding beyond traditional trading. It is pushing into data and analytics, selling market information to banks, brokers and asset managers.

The company is also investing in technology infrastructure, including cloud-based systems and new products for fixed income and over-the-counter markets. Its most recent annual report highlights growth in the “Data, analytics and infrastructure” segment.

Trading volumes have been volatile with Brazil’s interest-rate cycle. When rates are high, fixed-income products do well; when rates fall, equity volumes tend to pick up.

B3 earns fees either way.

What to watch

Competition is the long-term question. Brazil’s central bank has pushed for more competition in market infrastructure, and new entrants have tried to challenge B3 in clearing and settlement.

Regulatory pressure on fees is another risk. B3’s pricing power is the source of its high margins, and any mandated fee reduction would hit profits directly.

Interest rates matter too. Brazil’s Selic rate has been high, which supports B3’s fixed-income and derivatives volumes but can dampen equity trading.

The mix of volumes, not just the total, drives revenue.

This is news, not investment advice.