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1·The firms can logout the shares or hold them as the treasury stock after repurchase. But these shares can't participate in calculation return per share and distribution proceeds.

公司在股票回购完成后可以将所回购的股票注销，也可以将回购的股份作为“库藏股”保留，但不参与每股收益的计算和收益分配。

2·Share repurchase by listed companies is the act of listed companies to buy back its emitted shares, then cancel the repurchased shares or hold them as Treasury stock.

上市公司股份回购是上市公司通过一定的方式购回本公司发行在外的股份并予以注销或库藏的行为。