Is it permissible to subscribe to bank shares solely for profit, in the absence of a pressing need or necessity?

If the intention is to purchase shares through a Tawarruq transaction with the bank, then the answer is twofold:

Firstly: Tawarruq is permissible, provided that the bank owns the commodity before selling it to the client.

Secondly: For dealing in shares to be permissible, it is stipulated that the company's activity must be lawful, and that it does not place a portion of the shareholders' money in usurious banks to earn interest.

If both conditions are met, then purchasing shares is permissible, and there is no objection to intending to profit from this transaction.