Diversification is one of the most repeated rules in investing—but it’s often repeated without a clear explanation. In this episode, we break down what diversification actually means, why it matters, and the biggest misconception people have about it. Diversification is simply spreading your investments across different holdings and categories so that one single stock, one industry, or one event can’t determine your entire financial outcome. In other words, it’s a way to avoid making one big bet.

We explain diversification in two main layers. First, diversification within an asset class—like owning many companies instead of one, spreading across multiple industries, including different company sizes, and avoiding concentration in one theme. Second, diversification across asset classes—like combining stocks, bonds, and cash—because those cat ...