Is zakat obligatory upon a company invested in speculative shares, knowing that the invested-in company pays zakat on its profits and capital?

Zakat on invested wealth must be paid from the profit, and it is sufficient to pay zakat once. If the investing company pays the zakat with authorization from the owner of the wealth, then it is not obligatory to pay it again. However, if there is no authorization, then the company owning the wealth must pay the zakat, and it is not valid to pay it without authorization because intention is a condition for paying zakat.