CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 76% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 76% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

5 financial mistakes to avoid when investing online

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Reading time: 5 minute(s)

Investments can be an excellent opportunity to grow your wealth, but it is essential to proceed with caution. Avoiding common mistakes is critical to ensuring lasting financial success. In this article, we'll look at the five most common mistakes investors tend to make and give you tips on how to avoid them.


Overconfidence, often underestimated, is a mistake investors make all too frequently. When you believe excessively in a single opportunity or in your intuition, you can make hasty and poorly thought-out decisions. This can have significant impacts on investment returns. It is crucial to keep in mind that the financial market is notoriously unpredictable and changeable. Even the most seemingly attractive opportunities can hide unsuspected risks.

To avoid falling into this trap, it is necessary to maintain a rational approach based on objective data. We must resist the temptation to rely exclusively on instinct or momentary enthusiasm. Before making important decisions, it is advisable to conduct thorough research and carefully evaluate the available data. This more thoughtful approach can help preserve invested capital and foster more stable and rewarding financial results over the long term.

Underestimating costs 

Overlooking the costs associated with investing is a mistake that often goes overlooked, but it can have a considerable impact on the overall return of your portfolio. These costs can include trading commissions, management fees and other fees that can gradually erode your earnings over time.

Therefore, it is imperative that you carefully examine the cost structure of any investment vehicle you are considering. Look for solutions with competitive commissions, which allow you to not pay unnecessary costs. One option to consider is to invest in low-cost funds or ETFs (Exchange-Traded Funds). These instruments offer diversified exposure to a wide range of assets at relatively low cost, allowing you to get the most benefit from your long-term investment. Remember: Even small differences in costs can add up over time, so paying attention to this can make all the difference in reaching your financial goals.

Lack of diversification 

The lack of diversification is a mistake that should not be underestimated, and is considered as one of the most serious mistakes that an investor can make. Concentrating all your funds in just one asset class or sector can expose your portfolio to considerable risk in the event of turbulence or setbacks in those specific markets.

Diversification represents the cornerstone of a solid and informed investment strategy. It involves allocating funds to a variety of assets, such as stocks, bonds, real estate and commodities. This smart practice spreads risk across different investment categories, rather than concentrating it in one direction.

This means that even if a particular sector or asset class takes a downturn, other components of your portfolio can compensate or even thrive. For example, while the stock market may be going through a correction, bonds or real estate investments may exhibit a more stable performance.

To ensure effective diversification, it is crucial to carefully balance your portfolio. This involves allocating resources in a manner proportional to your objective financial needs, your risk tolerance and your investment time horizon. An appropriate mix of risk and return not only protects your portfolio from market shocks, but also creates a solid foundation for sustainable growth over the long term. Never forget that diversification is a powerful tool that can greatly improve the stability and resilience of your investment portfolio.

Taking too many risks

Taking on an excessive level of risk in pursuit of high returns is a serious mistake that can have devastating financial consequences. While it's undeniable that a certain degree of risk is inherent in investing, it's critically important to find a balance that aligns with your personal risk profile and financial goals.

Investing too aggressively can result in exposure to potentially devastating losses, which could undermine your efforts to achieve high returns. Therefore, it is crucial to carefully evaluate your risk appetite and establish an exposure level that is comfortable for you. This may involve choosing investment instruments that offer an appropriate balance between risk and return.

An effective strategy to mitigate the potential impact of significant losses in a specific industry or market is that of diversification. This means spreading your investments across different asset classes, sectors and markets. This way, even if a particular sector or market goes through a difficult period, the other components of your portfolio can continue to thrive. Diversification is a powerful weapon for managing risk and preserving invested capital in the long term.

Furthermore, remember that the objective of investments should not only be to obtain high returns, but also to preserve capital and ensure sustainable growth over time. Finding the right balance between risk and return is crucial to building a solid and lasting financial foundation.

Choosing the wrong Online Financial Broker 

The choice of an online financial broker is a crucial step towards investment success and should not be underestimated at all. Unfortunately, many investors fall into the mistake of not dedicating enough time and attention to finding a broker that is reliable and in line with their specific needs.

It is crucial to begin the process by evaluating the reputation of the broker. A broker with a solid reputation in the industry is more likely to offer high-quality service and support. You can get an overview of user opinions and ratings, as well as look for independent reviews on specialised forums or rating sites.

Trust is a key element when dealing with financial brokers. Make sure the broker you select provides reliable and easy-to-use trading platforms. A stable and efficient platform is essential to execute trades in a timely and accurate manner.

Another crucial aspect to consider is the commissions and fees associated with the broker. Look for a broker that provides a transparent commission structure, avoiding unpleasant surprises later. This will allow you to maintain a clear view of the costs and potential impacts on your portfolio's performance.

Regulation is an extremely important factor in ensuring the safety of your funds. Check that the broker is regulated by the relevant authorities of the country in which it operates. This offers an additional layer of security and protection for your investments.

XTB for example, is a one stop shop broker, with a global presence on the markets for over 19 years, regulated by the most authoritative financial regulatory institutions. We offer 0% commission on Stocks ETFs, Stock CFDs and ETF CFDs. Find out more about our fees here. 


In conclusion, avoiding these five common mistakes is critical to long-term investing success. Always remember to gain a thorough understanding of the financial instruments you invest in before making major investment decisions and periodically update your strategy based on changing market conditions.


Paying attention to costs is crucial because fees and expenses can significantly affect your portfolio's performance. Ignoring these costs could lead to reduced earnings in the long term.


Avoiding overconfidence requires adopting a rational, evidence-based approach. Avoid focusing too much on a single opportunity and always seek feedback and advice from trusted sources.

The right balance between risk and reward depends on your personal risk profile and your financial goals. It's important to find a balance that allows you to earn competitive returns without taking on excessive risk.


Choosing a reliable online financial broker requires research and attention to detail. Make sure the broker has a good reputation, offers stable and transparent trading services and platforms, and is regulated by the relevant authorities.

Diversification is crucial because it helps reduce the overall risk of your portfolio. By investing in a variety of assets, you are less exposed to market fluctuations in a specific sector or market.

Some alternatives to traditional funds include Exchange-Traded Funds (ETFs) and direct investments in stocks or bonds. These options often offer lower fees than actively managed funds.

Warning signs include significant losses in a short period of time, excessive concentration in a single sector or asset class, and a lack of diversification in your portfolio.

This content has been created by XTB S.A. This service is provided by XTB S.A., with its registered office in Warsaw, at Prosta 67, 00-838 Warsaw, Poland, entered in the register of entrepreneurs of the National Court Register (Krajowy Rejestr Sądowy) conducted by District Court for the Capital City of Warsaw, XII Commercial Division of the National Court Register under KRS number 0000217580, REGON number 015803782 and Tax Identification Number (NIP) 527-24-43-955, with the fully paid up share capital in the amount of PLN 5.869.181,75. XTB S.A. conducts brokerage activities on the basis of the license granted by Polish Securities and Exchange Commission on 8th November 2005 No. DDM-M-4021-57-1/2005 and is supervised by Polish Supervision Authority.

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