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Diversification is a strategy that involves investing in a diverse array of companies that are different from one another to achieve superior returns over time and limit exposure to one single stock. One way to do this is by investing in an ETF or through a mutual fund. Although returns can vary depending on the type of stock and the company’s market cap, diversification can also be achieved through exposure to companies in different countries.

The question of how much diversification is needed is a personal one. It can be determined depending on the goals and risk tolerance of investors. In addition to investing in companies with varying market caps, investors should consider other factors, such as the advantages and disadvantages of diversification.


A notable advantage of diversification is that it can reduce an investor’s overall risk and volatility. It can also help minimize losses when one investment in one area does poorly. For instance, if one stock suffers a large drawdown due to poor management, the other stocks in the basket might be just fine and reduce the overall loss from the one stock that had a big down move. 


Unfortunately, diversification can also have adverse effects on an investor’s investment portfolio. It can limit an investor’s potential gains and produce mediocre returns. For instance, if you buy every stock in an index, then you won’t ever outperform the index either. 

Diversification can also lead to careless behavior since investors should be thinking about the companies they invest in. 

Concentrated Portfolio

One of the main advantages of having a more concentrated portfolio is that it can increase an investor’s potential gains. Most investment portfolios are not widely diversified, meaning those with a few investments in a few industries or companies are more likely to achieve wealth. A more balanced portfolio can also help investors avoid getting carried away by the market’s performance.


For most investors, choosing exchange-traded funds or mutual funds over a broad portfolio is the best choice. A sensible approach for an investor is only to have a modest amount of diversity while still focusing on finding high-quality investments. A diversified portfolio should ideally be chosen using a strategy such as value investing, growth investing, or income investing. An investor’s overall investment goals and personal risk tolerance are also considered.

Although having a diverse portfolio is beneficial, it should not be an investor’s primary concern when building an investment strategy. An investment portfolio should only be focused on meeting the investor’s financial and personal goals.