My data feed provider has "enhanced" their data feed and added new fields to their EOD format. I'm noticing that there are now three volume fields: Tic Volume, Transaction Volume, and Volume. I'd like to know what Tic Volume and Transaction Volume are before I guess wrong. I'd also like to know if anyone thinks they are worth capturing or tracking. As an example, for NTAP on 1/17/2003, Transaction Volume was 1900, Tic Volume was 12547, and Volume was 8453400. Thanks very much, Rich