Kalshi VoteHub Contract Exposed Over Fake Poll Data Integrity Risks
Current overview (not historical)
Kalshi's VoteHub contract faced integrity concerns after its reliance on third-party polling data was called into question. Wedgewood Company admitted to fabricating most surveys by October 20, yet the VoteHub data director still incorporated the data into averages and assigned it a D rating, prompting market doubts about the platform's data reliability.
Written with AI from the reporting · updated 10/23/2026
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- 1Unclassified fact stationSep 12, 00:00recorded Oct 23, 18:56single sourcerevised
Kalshi 合约因假选举民调数据而暴露数据完整性漏洞
Read original source ↗ CryptoSlateReplay this moment in the explorerEvidence & revisions · 1 source records
- Subject：
- kalshi
- Action：
- 发布合约并引用 VoteHub 数据作为结算基准
- Object：
- VoteHub 的时间加权民主党减共和党票差
- Occurred (fact side)：
- Sep 12, 00:00
- Published (valid side)：
- Oct 23, 18:50
- First seen (known side)：
- Oct 23, 18:56
Fact stationSingle source · one-sided claimRevisedCopy may have been revised later; time replay is bounded. Layer labels group reading only, not causation between layers.
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- CryptoSlateRelated fact: single sourceSource report revisedFake election polls expose Kalshi loophole regarding data revisions
Report first recorded Oct 23, 18:56
Polling firm Wedgewood admitted on Oct. 20 that it fabricated most of its election surveys, and VoteHub, which aggregates these results and serves as the data source for recurring Kalshi contracts, is implicated. Kalshi's September 2025 regulatory filing states that revisions to the Underlying made after Expiration will not be accounted for in determining the Expiration Value, raising questions about settled contracts based on false polling data. Researchers at FiftyPlusOne found inconsistencies in Wedgewood's Mississippi Senate survey data, and VoteHub's head of data science, Zachary Donnini, said he incorporated the data despite grading Wedgewood a D.
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