Investing — Stock Markets — Success

5 Common Traps for New Investors in the Stock Markets

If you’re new to investing in stock markets, there are many pitfalls to avoid. Learn how to dodge the most common ones, so you can make the most of your investments.



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Investing in the stock market can be a great way to grow your wealth over the long term, but it’s important to avoid making common mistakes that can jeopardize your investments, especially as a beginner investor.

In this article, we’ll discuss some of the most common traps that new investors need to avoid when allocating stocks in their portfolio. See it like an “Investing 101” story!

Not Having a Clearly Defined Investment Strategy

Before starting to invest in stocks, it’s important to have a well-defined investment strategy in terms of objectives, risk tolerance, investment horizon, etc. This will help you to guide your decisions.

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Otherwise, you would be tempted to chase after the “hot” stock of the moment. This can be fruitful, but it’s important to remember that past performance is not always indicative of future results. Just because a stock has performed well in the past doesn’t mean that it will continue to do so in the future.

Not Being Disciplined Enough

Stock investment can be volatile, and it is important to be disciplined in managing your portfolio to avoid making emotional decisions that could harm your performance. I wrote a dedicated Medium story about that:

Put All Your Eggs in One Basket

It is important to diversify your stock portfolio to reduce the risks associated with an investment concentrated in one company or sector.

Indeed, one common mistake that beginner investors make is to allocate too much of their portfolio to a single stock. This is known as “concentration risk.” By investing too much in a single stock, you are taking on a great deal of risk, because if that stock performs poorly, it can have a significant impact on your overall portfolio.

Diversification is key to reducing risk in your portfolio, because it allows you to spread your investments across different types of assets, industries, and geography. This way, if one asset, sector or region performs poorly, your overall portfolio won’t be as affected. Low cost, Exchange-Traded Funds (ETFs) are a great way to achieve that kind of diversification.

Underestimating the Impact of Fees

Buying, selling or holding stocks is associated with various trading fees, such as brokerage fees or management fees. They can have a significant impact on the performance of your stock portfolio.

It’s important to take these trading fees into account when allocating stocks in your portfolio because they can eat into your investment returns. In particular, brokerage fees are the charges that are levied by brokers for executing trades on your behalf. These fees can vary depending on the broker and the type of trade being executed, but they can add up over time, especially if you are an active trader.

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By taking trading fees into account when allocating stocks in your portfolio, you can help ensure that your investment returns are not significantly reduced by these costs. Additionally, by considering trading fees as part of your investment strategy, you can also help ensure that you are making the most cost-effective decisions when it comes to buying and selling stocks.

Not Regularly Monitoring the Evolution of Your Investments

It is important to regularly monitor and adjust your stock portfolio. Indeed, the performance of individual companies and the overall market can vary over time, impacting the performance of your portfolio. Then, regular monitoring can help identify potential issues or opportunities within your portfolio, and make changes accordingly.

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For example, if a company in your portfolio is underperforming, you may want to consider selling some or all of your shares and reallocating those funds to a different company that is showing stronger growth potential. On the other hand, if a company in your portfolio is outperforming, you may want to consider increasing your allocation in that company in order to take advantage of its strong performance.

By regularly monitoring and adjusting your stock allocation, you can maximize your returns and manage risk.

I’m Raphaël, founder and editor-in-chief of, a financial website for French-speaking private investors. Thanks for reading! Don’t hesitate to follow me on Medium, Twitter or Polywork.

This article is for educational and entertainment purposes only and shouldn’t be considered as financial or legal advice. Not all information will be accurate, but all the data is sourced. Consult a professional before making any significant financial decisions. This article shouldn’t be seen as an incentive to buy or sell any of the securities mentioned therein, nor endorsement to any presented strategy. Some links can be affiliated ones.




Blogger at (investing for french investors). I talk about investing, financials & money with a long term mindset.