stock

the merchandise that a shop has on hand; "they carried a vast inventory of hardware"
the capital raised by a corporation through the issue of shares entitling holders to an ownership interest (equity); "he owns a controlling share of the company''s stock"
a certificate documenting the shareholder''s ownership in the corporation; "the value of his stocks doubled during the past year"
regularly and widely used or sold; "a standard size"; "a stock item"