Ten stocks sounds diversified. Until you notice eight of them live in the same industry. Jia sits down with Nia to talk concentration risk, fund overlap (owning the same company twice without knowing it), and three habits that fix it: look beneath the surface, examine your exposure, and know the limits. Diversification is a seatbelt, not a force field.Conversations is The Bull Pen's talk series: real conversations about the tools of investing, in plain English. Educational content only, not financial advice.More episodes and the free portfolio tracker: stockmystocks.com/podcast

Jia sits down with Kenji for the first Conversations episode of The Bull Pen, and they start with the word everybody nods along to: ETF. What's actually inside one, why it works like a fruit basket instead of a single apple, and how it became the beginner's best friend. Investing for beginners, in plain English. Educational only, not financial advice.