Gilberto Vitoria is a Brazilian content creator, based in Feira de Santana, Bahia, who built "Diário de um Investidor" into one of the country's mid-tier personal-finance channels, with 125K subscribers and roughly 1,000 videos since starting the channel in April 2019. His positioning is grounded in his own backstory: he was previously deep in debt, dug himself out, and now describes himself as an active investor who wants to spare others the same mistakes. That biographical hook gives his content a confessional, mentor-style tone that is unusual in Brazilian fin-edu YouTube.

The editorial focus skews toward conservative wealth-building rather than active trading. He routinely covers Brazilian fixed-income products (CDB, LCI, LCA), variable income such as stocks and real-estate funds (FIIs), and consumer-credit topics like credit cards and debt restructuring. Crypto appears in his catalog but is not the core pillar; he is closer to a personal-finance YouTuber who covers crypto when relevant than a dedicated crypto KOL.

Off YouTube he maintains an Instagram presence under the same handle (8.1K followers) and is on LinkedIn as a self-described content creator, holding a journalism degree from Faculdade Anísio Teixeira. His Telegram channel is positioned as a place for daily tips and community, which suggests an audience that already trusts his voice enough to follow him into a higher-intent platform.