The sums paid by members to a company savings plan, the additional sums paid by the company, the sums allocated by way of profit-sharing and allocated voluntarily by employees to this savings plan as well as the sums allocated to employees by way of profit-sharing and allocated to the implementation of this plan are, within a period of fifteen days from their payment by the member or from the date on which they are due, respectively, used to acquire shares in open-ended investment companies or units in company mutual funds or securities issued by the company or, where applicable, by companies created under the conditions provided for in article 11 of law no. 84-578 of 9 July 1984 on the development of economic initiative.