Quote from kevinmclark:
As a result of recent events (CMEâs New Trade Message Aggregation Model, effective today, http://www.cme.com/trading/get/dev/marketdata2848.html) it seems that tick charts can be easily manipulated by the CME and or others (brokers and charting data providers), which make them less stable than time or volume charts. Therefore Iâm making the switch to volume charts.
We dug further into this, and there may be some notice seen at the tick chart level. It used to be that CME had a feed that aggregated trades at the same price like the new Trade (M6) Message Aggregation Model, and another feed that broke everything out individually. Earlier in the year, we switched to the latter. CME later in the year dropped the aggregate feed, so there has been only one feed across all data vendors and brokers.
Now, due to sheer increases seen in market activity, the CME has gone back to aggregating trades again. There is the possibility that it may be noticed that the CME feed behaves differently with the new aggregation in place if digging down into the trades at the tick level.
Quote from kevinmclark:
The following is eSignal's response to this change:
[thread]16439[/thread]
JayF has just replied.
Here are the contents of the post:
JayF has just replied to a thread or forum you have subscribed to entitled - Will the Globex Data Changes Impact My Tick Charts? - in the eSignal forum of eSignal Bulletin Board.
This thread is located at:
http://forum.esignalcentral.com/showthread.php?threadid=16439&goto=newpost
Quote from kevinmclark:
Also see the following threads for more info:
http://elitetrader.com/vb/showthread.php?threadid=60786
http://elitetrader.com/vb/showthread.php?threadid=60688