IEX Blasts Citadel Securities' 'Campaign' To Block Exchange

By Jessica Corso ( November 3, 2025, 8:16 PM EST) -- Investors Exchange LLC is pushing back against Citadel Securities LLC's attempt to stop it from going live with a new options exchange, telling the Eleventh Circuit that the high-frequency trading firm has run a decade-long "campaign to impede IEX and preserve its competitive advantages."...

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