Some retail investors have found success in stock picking by investing in companies they are familiar with, following Warren Buffett's advice to invest in what you know.
Bob Vanscoy invested in Nvidia after observing his children's interest in video games, which led to a significant gain in his investment. Similarly, Mikhaela Delahunty bought Crocs stock after seeing its popularity among kids.
Other investors like Etienne Breton and Sherry Jiang invested in Palantir based on their firsthand experiences with the company's solutions or career aspirations. Their investments have also paid off well.
While investing based on personal observations can be a viable approach, experts recommend maintaining diversification through ETFs, index funds, and asset allocation strategies for more consistent returns.