Ticks and tape

I think this issue is application dependent, rather than feed dependent. I don't believe that quotetracker or esignal do it correctly. I've seen many cases in the book where someone cleans off the inside bid with one block quantity (market is then offered at the former bid price), but the T&S window shows the transaction going off at the offer (i.e., it would color it green). It's like the sequence of events is off: they record the trade and then compare the trade price to the bid/ask. I seem to remember that Neoticker did it correctly.
 
CME staff said as follows,

"The E-quote Time and Sales shows tick-by-tick volume. The service you purchased, E-quote, is real-time (tick-by-tick). Charting is the only serive in "basic package" that is not real-time. Charting is 15 minute intra-day however we do offer real-time charting as an upgrade for $40.00 extra"

Question was,

"In the E-Quotes Time & Sales window (see attached picture) is the reported volume aggregated in any way or does it show trades tick-by-tick?"

So it seems, that E-quote's T&S shows every trades made at BID or ASK.
 
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