In this brief 6-page, 6-exhibit case study teaser, Alphacution presents its estimates for the overall market share of US listed equity derivatives volume represented by Susquehanna Securities, the affiliate of legendary options trading powerhouse, Susquehanna International Group (SIG), that’s home to the group’s US market making operation. This report is presented in the context of Alphacution’s forthcoming case study on option market makers’ share of US listed equity derivatives which will include Alphacution’s market share estimates for Citadel Securities, Optiver US, LLC, and IMC Financial Markets, among many others...