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A bettor earned a substantial sum from wagers on the downfall of Nicolás Maduro shortly prior to it was officially announced, sparking debate about potential gains made from confidential information of the event.

Market Movement in Wagers

Wagers on Polymarket, a blockchain-based service, that Nicolás Maduro would be out of power by the close of the month increased in the hours before former President Trump announced on the weekend that the president had been apprehended.

A particular user, which registered on the site last month and made four bets, all on Venezuela, made more than $436,000 from a starting bet of $32,537.

The identity is unknown. The user had only a cryptographic address for identification.

Market Signals Before News Break

Trading information shows that participants put the odds of a political change at just a low 6.5 percent in the afternoon of the Friday before the event.

Yet the market's assessment had climbed to 11% by shortly before midnight and surged in the morning of Saturday, pointing to a sudden change in market sentiment immediately prior to the official statement was made.

"That trade has all the hallmarks of a bet based on confidential knowledge," said a financial reform advocate.

Several of other platform users also earned tens of thousands of dollars from bets on the same outcome.

Regulatory Scrutiny Emerges

Elected officials are growing concerned.

Proposed legislation introduced on Monday aims to prohibit federal workers from participating on forecasting platforms if they have "confidential government knowledge" related to a wager.

The Prediction Market Landscape

Prediction markets have surged in popularity in the United States, with traders able to bet on everything from sports to current affairs.

This sector were examined under the last presidential term. But it has found a more favorable environment during the Trump presidency.

Trading on insider information is against the law in the stock market, but there are fewer regulations in the prediction market industry.

An official representative for a competing service said their site "has clear rules against insider trading of any form."