A AIM A securities market owned and operated by the London Stock Exchange plc, with lighter entry requirements and continuing obligations than the main regulated markets. Formerly the Alternative Investment Market, now simply known as AIM. AIM company A company with a class of its shares traded on AIM. Acquisition accounting An accounting methodology where a buyer incorporates acquired assets and liabilities in its balance sheet at the date of acquisition, with any difference between the price paid and the fair value of the net assets acquired being purchased goodwill. Allotment Shares in a company are taken to be allotted when a person acquires the unconditional right to be included in the company’s register of members in respect of the shares (Companies Act 2006, s 558). Allotment is followed by the issue of the shares. Allotment authority The relevant authority under CA 2006, ss 549–551 giving the directors authority to allot shares in the company, or to grant rights to subscribe for, or to convert any security into, shares