Let’s start by defining what a direct investment is. It is simply the fact that you manage your own financial product portfolio. In other words, you directly buy and sell financial products of companies, or projects you are interested in and will make them evolve based on your own goals. This therefore requires discipline and a good understanding of the basic principles of finance. Indeed, all financial products do not have the same yields and, most importantly, the same risks. In fact, as a general rule, the more an investment is risky, the more likely it is that the yield will be important.
You can also decide to invest directly in investment funds, which corresponds to investing in a more indirect way. In short, investment funds are collective investments managed by finance professionals. You should also have a look at the file I prepared for you regarding investment funds and ETF.