CDRG Citadel Derivatives Group LLC CHICAGO, IL
Post# of 16816
Citadel Derivatives Group LLC
CHICAGO, IL 312-395-2717
Bid: 5,000 @$0.0001
Ask: 5,000 @0.0003
Definition of 'Ax'
The market maker who is most central to the price action of a specific security. The ax can be identified by spending several days studying level II quotes and noting which market maker seems to have the greatest effect on the security's price.
http://www.investopedia.com/terms/a/ax.asp