Current members:
3Red Partners LLC
Akuna Capital LLC
ARB Trading Group
Citadel Securities, LLC
DRW Holdings, LLC
DV Trading, LLC
Eagle Seven LLC
Geneva Trading USA, LLC
Hudson River Trading LLC
IMC Financial Markets
Jane Street Capital, LLC
Jump Trading Group
Kore Trading, LLC
Optiver
Prime Trading LLC
Quantlab Financial, LLC
Radix Group
Tower Research Capital LLC
Two Sigma Securities, LLC
WH Trading
XR Trading LLC
