COST BASIS, in securities, is the purchase price after commissions or other expenses. It is used to calculate capital gains or losses when the security is eventually sold.
STOCK SPLIT is the issuance of a substantial amount of additional shares, thereby reducing the par value of the stock on a proportionate basis.
AGGREGATE THEORY is a theory of partnership taxation in which a partnership is considered as an aggregate of individual co-owners who have bound themselves together with the intention of sharing gains and loses; under this theory, the partnership itself has no existence separate and apart from its members.
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