This card shows that you are ready to make a short-term financial investment, however it doesn't seem to be the most optimal choice at the moment. The Four of Pentacles suggests that you are putting your money away prudently, but if you decide to invest through short-term trading activity, then you should carefully consider the risks and opportunities that may arise. There may be some profit margin, but it is important to be aware of possible losses before proceeding.
This chart shows that there is the potential for a substantial return in short-term trading, but you will only be able to achieve it if you carefully weigh the opportunities and risks associated with this activity. The reversed Ten of Pentacles indicates that you may find yourself in difficult situations if you do not pay due attention to your financial dealings; however, if you have the skills to manage optimal trading strategies, then there is the potential to generate some significant profits.
In conclusion, based on these two cards, the probability of a large profit through a short-term trading activity depends on the person's ability to adequately evaluate the opportunities and the risks involved. Therefore, it can be said that the answer to the question is "No", as there is no guarantee of a big income in this field; however, with the application of the right financial strategies and the experience needed to successfully manage short-term trading, there is a chance that a good profit will be generated.