An offer to purchase a sufficient number of stockholders' shares so as to gain effective control of a firm at a certain price per share, followed by a lower offer at a later date for the remaining shares. For example, an investor may offer $50 per share for up to 51% of a firm's outstanding stock and then, having gained control, offer $40 for each of the remaining shares. Compare any-and-all bid. See also appraisal right, back-end value, blended price, fair price amendment.