The São Paulo Stock Exchange, known as B3, is the main stock exchange in Brazil and one of the largest in the world. It facilitates the buying and selling of shares, bonds, and other financial instruments, providing a platform for companies to raise capital and for investors to trade assets. Founded in 1890, the B3 has evolved significantly over the years, integrating advanced technology to enhance trading efficiency. It plays a crucial role in the Brazilian economy, reflecting market trends and investor sentiment, while also offering various investment products to cater to different financial goals.