Marex Says Developer Sank CME Ventures Investment Deal

By Celeste Bott ( October 21, 2026, 5:49 PM EDT) -- Financial services firm Marex Capital Markets and two of its executives have sued a British software developer in Illinois federal court, alleging the developer sabotaged a potential investment by CME Group's venture capital arm in Marex's options-trading platform by secretly accusing them of stealing trade secrets, committing fraud and violating exchange rules....

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