A federal appeals court rejected Citadel Securities' challenge to IEX Options, clearing the way for IEX Group's new options exchange to launch October 2, 2026.
The SEC properly approved a new options trading platform that curbs high-frequency traders’ edge over other investors, a federal appeals court said Friday, rejecting a challenge by Citadel Securities ...
After a 13-page letter from investment powerhouse Citadel Securities advised the U.S. Securities and Exchange Commission that decentralized finance (DeFi) protocols handling tokenized securities ...
Market making firm Citadel Securities urged the U.S. Securities and Exchange Commission (SEC) to take a cautious approach toward decentralized finance (DeFi), arguing that certain systems dealing in ...
Citadel Securities asked the Securities and Exchange Commission to test reducing the price increments that some stocks and ETFs trade at before embarking on major market structure changes. In a letter ...
A viral Substack post from Citrini fueled stock market losses this week after the hypothetical scenario it outlined stoked Wall Street's fears of AI disruption. Days later, Citadel Securities has hit ...
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