Sentence:  `` The fact that sticks out in this voluminous record is that the bulk of du Pont 's production has always supplied the largest part of the requirements of the one customer in the automobile industry connected to du Pont by a <WSD>stock</WSD> interest . 
Meaning of the word marked with <WSD> tags:  the capital raised by a corporation through the issue of shares entitling holders to an ownership interest (equity)