The Risk of Having Everything in One Place
A man owns a house. When a guest visits, they exclaim, “Oh my! What a beautiful home you have!” The guest assumes the host is wealthy and requests some expensive liquor. Taken aback, the man responds, “All I have to offer you is water.” What the guest did not realize is that the man is house poor. He spent his life savings on a down payment for a beautiful home and continues to spend the majority of his income paying the mortgage. What if something happens to him (job loss, an unexpected expense, major home repair, health issues, etc.)? He owns a valuable asset, but much of his income is committed to the mortgage, and whatever equity he has built is not easily accessible. On paper, the man may appear rich. In practice, nearly all of his wealth is concentrated in a single illiquid asset. This illustrates how concentrating wealth in a single asset can leave us financially vulnerable, particularly when that wealth is difficult to access. Rather than following this example, let’s consider how to utilize diversification to reduce concentration risk.
Understanding Diversification
Diversification is a practice rooted in accepting that we cannot perfectly predict the future and preparing accordingly. Nobody knows with certainty which company, industry, country, or asset will perform best tomorrow. Investors are exposed to risk in the market. Diversification does not eliminate risk. It changes your exposure to it. Diversification begins by acknowledging these limitations and choosing to spread investments across assets whose risks and returns aren’t perfectly dependent upon one another.
For example, you have $10,000. You can invest all $10,000 in one company or divide it among many companies. If the single company fails, your exposure is enormous. If one company within a diversified portfolio fails, the effect is much smaller. Owning ten technology companies isn’t necessarily meaningful diversification if they’re exposed to many of the same forces. Companies within the same industry often face similar risks because they share markets, suppliers, customers, and economic conditions. Meaningful diversification therefore extends beyond simply owning multiple investments. Not one company, but many. Not one industry, but multiple. Not one country, but numerous.
The Trade-Off Between Risk and Reward
Diversification deliberately gives up some possibility of extraordinary gains from being exactly right in exchange for reducing the consequences of being very wrong. Although diversification offers significant benefits, it also involves trade-offs. If one stock rises 500%, an investor who concentrated their portfolio in that stock would outperform someone who held it as part of a diversified portfolio, assuming the other holdings earned lower returns. Diversification reflects a willingness to accept the idea: “I don’t need to capture every possible gain in order to build wealth.”
The Interconnected Nature of Risk
Let’s step back and consider how integrated the modern world has become. Diversification depends not merely on the number of investments, but on how differently those investments respond to the same risks. Even a well-diversified portfolio remains exposed to broader economic events that affect many investments simultaneously. Transportation and shipping, for example, are important components of the global supply chain that often go unconsidered. Geopolitical events that restrict cargo ships from reaching their destinations can affect companies and markets far beyond the region where the disruption occurs. When disruptions occur, consider where the consequences travel: who bears the additional costs, who absorbs the risk, and who may benefit from the changing conditions? Countless connections exist within financial markets, linking companies, industries, and regions in ways that may not be immediately visible. Diversification helps reduce our dependence on any single company, industry, or source of risk, even within an interconnected global economy.
The Value of Different Perspectives
Different backgrounds produce different experiences, knowledge, skills, and ways of approaching a problem. Human differences have often been treated as sources of division, even though those same differences can broaden our collective knowledge and capabilities. Bringing different people together can expose assumptions that would otherwise go unquestioned and introduce solutions that would otherwise remain unseen. Our differences do not merely separate us; they expand what becomes possible when we learn from one another. In finance, diversification offers a simpler expression of this principle: strength does not always come from finding the single best option, but from recognizing the different strengths that exist among many.
Diversifying Through ETFs
Exchange-Traded Funds (ETFs) are accessible tools that can help individual investors diversify their portfolios. ETFs can provide investors with a simple way to diversify because a single fund may hold hundreds or even thousands of individual investments. By purchasing a share of a diversified ETF, you gain exposure to the collection of investments held by that fund. However, holding many securities does not necessarily eliminate concentration risk. Some ETFs focus on specific industries, regions, or investment strategies rather than providing broad diversification.
If you would like to build diversification into your portfolio, looking into ETFs is a practical place to start. Depending on your goals, ETFs can provide exposure to broad markets, particular industries (Technology, Transportation, Biopharma, etc.), different geographic regions (US, international, developing markets, etc.), or even various asset classes (stocks, bonds, commodities, real estate, etc.). For example, Vanguard’s VOO ETF tracks the S&P 500 Index, which includes approximately 500 of the leading large U.S. companies. This ETF allows an individual to diversify across many companies within one geographic region without having to purchase 500 separate stocks, while keeping management fees low. When combining ETFs, consider whether their holdings overlap and whether they genuinely provide exposure to different sources of risk.
Diversification is an acknowledgment of uncertainty. We do not diversify because we know what will happen; we diversify because we don’t. The goal is not to predict every winner or avoid every loss, but to build a portfolio capable of enduring outcomes we could not predict. You do not need to be exactly right in order to build wealth.