Is financial dealing with an online foreign currency investment company, characterized by a variable daily profit percentage and the possibility of reinvesting profits, with the company not guaranteeing the original capital, considered a usurious transaction?

For investment in any company or bank to be permissible, the following conditions must be met: 1. Knowledge of the investment field and verification of its permissibility. It is not permissible to invest in an unknown activity or in one that invests in usury (riba) or prohibited transactions. 2. No guarantee of the principal capital. The company is not obligated to return the capital in case of loss, unless it is due to negligence on its part. This is because guaranteeing the capital makes it a loan, and any profits from it would be usury. 3. Defining profit as a common percentage of the actual profits (such as one-third, one-half, or 20%), and not as a percentage of the principal capital. This is because an unknown profit percentage invalidates the transaction.

Therefore, one must know the investment field, verify its permissibility, agree on a known percentage of the profits, and ensure that the company adheres to Islamic rulings regarding currency exchange.