Citadel Securities Patents

Patent portfolio assigned to Citadel Securities (verified via public assignee records). Citadel Securities is a leading electronic market maker / wholesale liquidity provider (a NYSE Designated Market Maker, major retail order-flow wholesaler). Competitors Jane Street, Virtu Financial, Susquehanna (SIG), IMC and Two Sigma Securities confirmed from market-maker industry coverage. has_patents=true: patents on trading methods (e.g. reducing exposure to 'toxic' order flow, Kenneth Griffin among inventors) are assigned to Citadel Investment Group, L.L.C. and Citadel Enterprise IP Holdings LP — the broader affiliated Citadel organization rather than the 'Citadel Securities LLC' entity name specifically; exact count not verified. Market makers do not have 'notable customers' in the conventional sense, so left empty.