• B3 analysis showed oil, mining, financial stocks dominated April 2026 trading, with flows concentrated in the most liquid blue chips.
• Petrobras PN (PETR4) ranked first by buyer-side traded value, followed by Vale (VALE3) and Itaú Unibanco (ITUB4).
• Investor behavior diverged by segment; retail, funds, foreign investors clustered in large caps, while financial institutions skewed more diversified.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. B3 SA Brasil Bolsa Balcao published the original content used to generate this news brief on May 25, 2026, and is solely responsible for the information contained therein.