Who Will Regulate Insider Trading In Prediction Markets?

By Noah Solowiejczyk and Rebecca Matsumura ( October 24, 2025, 5:02 PM EDT) -- The night before the formal announcement of the 2025 Nobel Peace Prize winner on Oct. 10, the odds that Venezuelan opposition leader María Corina Machado would win surged on the decentralized prediction platform Polymarket, propelled by unusually prescient trades by certain users. The Nobel Institute later confirmed that it was investigating whether confidential information about the announcement had leaked in advance....

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