Kalshi Faces Scrutiny Over Election Contract Settlement Rules Amid Fake Poll Scandal

Kalshi’s settlement rules for contracts tied to VoteHub data are under examination following a polling firm’s admission of fabricating election surveys. The platform’s regulations stipulate that revisions to underlying data after expiration will not impact a contract’s final settlement value.

What Happened

Polling firm Wedgewood admitted on October 20 that it fabricated most of its election surveys. VoteHub, an aggregator that carried Wedgewood’s results, is also designated as the data source for recurring Kalshi contracts, according to CryptoSlate. This admission has raised questions regarding Kalshi’s contracts linked to VoteHub data, particularly concerning settlement rules.

Kalshi’s September 2025 regulatory filing specifies VoteHub as the source agency for these contracts. The filing also states that “revisions to the Underlying made after Expiration will not be accounted for in determining the Expiration Value,” as reported by CryptoSlate. This provision means that if the underlying polling figures are later discredited or found to be false after a contract has settled, the original payout remains unchanged.

Key Details

• Wedgewood admitted on October 20 that it fabricated most of its election surveys, with VoteHub, a Kalshi data source, having incorporated its results (CryptoSlate).
• Kalshi’s September 2025 regulatory filing indicates that post-expiration revisions to underlying data will not affect the expiration value of contracts (CryptoSlate).
• Researchers at FiftyPlusOne identified inconsistencies in Wedgewood’s Mississippi Senate survey data after requesting raw information, leading to Wedgewood’s admission of fabrication (CryptoSlate).
• VoteHub’s head of data science, Zachary Donnini, stated that VoteHub graded Wedgewood a ‘D’ but still incorporated its polling data (CryptoSlate).
• An August report by the Associated Press noted a Kalshi contract related to a candidate shifted approximately two cents within 15 minutes of a fabricated Los Angeles mayoral poll from Median Strategies (CryptoSlate).

Why It Matters

The situation highlights a potential data integrity issue within prediction markets, particularly for platforms like Kalshi that rely on third-party data for contract settlements. The fixed observation time in event contracts, while providing settlement certainty, also ties the outcome directly to the reliability of the source data available at that specific moment. If fabricated data influences settlement values and those payouts are irreversible, it could affect market trust and raise concerns for traders, according to CryptoSlate.

The methodology of VoteHub itself, which includes Kalshi prices in its Complete forecasting model, suggests a feedback loop where market prices contribute to forecasts consumed by traders. While the settlement reference, a polling average, is intended to rely on its own inputs, the integration of market prices in the forecast within the same information environment raises questions about the clear separation of polling observations, model forecasts, and tradable probabilities, as noted by CryptoSlate.

What’s Next

To address the concerns, Kalshi could confirm which rulebook governs the October series of contracts, archive settlement inputs with timestamps, and outline a dispute resolution process for fabricated source data. VoteHub could also enhance transparency by publishing which Wedgewood surveys were included in its averages and when they were subsequently removed. If a contract settles on data later withdrawn and Kalshi’s exclusion rule prevents adjustment, it would mark the first publicly documented instance of a payout based on discredited data, thereby testing both the exchange and the aggregator (CryptoSlate).

Originally reported by CryptoSlate·Published 23 Oct 2026, 10:50