If I short a stock, does this volume show up on a stock's published volume totals? I would think not since I am simply borrowing the shares from my broker's inventory which the firm already owns instead of the order being filled through an exchange. My way of thinking is that this is more of a private transaction involving just myself and the broker vs. having to involve a public exchange where it gets reported. A few last questions: Let's say a stock plummets by a large percentage (7% or more) on high relative volume (2X or more). Will I still be able to short the stock or do the available shares for shorting "dry up" because of this unexpected huge drop? In other words, do broker's earmark only a certain portion of their inventory to loan for shorting and does it dynamically change based on the current market conditions? Thanks a bunch! T.C.