What is the ruling on trading currencies and stocks online if purchase operations are financed by a credit card from an Islamic bank?

Trading in currencies and stocks is permissible if it adheres to Sharia (definition) controls, provided that the company's shares are permissible to deal with, and are limited to lawful matters, and do not involve prohibited contracts. As for financing purchases with a credit card issued by an Islamic bank, its permissibility is conditioned upon it being free from Sharia prohibitions, such as signing a usurious contract, or actually falling into usury, or taking a percentage on the withdrawn amount. If the card is free from these prohibitions, it is permissible to use it to buy shares, but it is not permissible to buy gold, silver, and currencies with an uncovered card.