1. I assume you are referring to the volume traded on the Nasdaq and not literally number of trades. A trade could have 100 shares as well as it could cover a million shares. On the other hand volume gives the total number of shares transferred. 2. read more
Note: Daily closing values are valid as of 5:15 p.m. ET. Duplicate values disseminated after 5:15 p.m. * All values included in the"Ten Most Active Share Volume" are calculated using the NASDAQ Market Center trades only. read more