an invitation to the existing shareholders of a particular company to sell some of their shares at a particular price either to the company itself or to another company 要约收购◆The shares rose 20% after the company said it would return $6 m to shareholders via a tender offer at 50 cents a share. 这家公司声称将通过要约收购方式以每股 50 分的价格向股东返还 600 万元，之後其股价上扬了 20%。
the act of offering to buy new shares at a particular price 购买新股◆The Swiss entrepreneur made a tender offer for 15% of the company at €2.34 a share. 这位瑞士企业家发出要约，以每股 2.34 欧元的标价购买这家公司 15% 的股份。