The NYC Council's staged-trade claim — what public records can test

On Aug 12, 2026, New York City Council Speaker Julie Menin sent letters to four prediction-market platforms — Kalshi, Polymarket, Coinbase and Gemini Titan — opening a Council review of their marketing practices. The Council's own press release describes allegations including undisclosed influencer marketing, promotional videos depicting trades that were never executed on look-alike versions of a platform's interface, and profitable outcomes shown to viewers that would, on the real trading record, have lost money. Speaker Menin: “We refuse to let New Yorkers, especially our young people, become collateral damage.” Council Member Harvey Epstein: “We have a responsibility to investigate their claims and advertising tactics.”

The Council's letters follow separate news reporting — not itself part of the Council's release — on a review of a large sample of creator-posted trading videos, reported consistently across multiple outlets including CBS News: roughly 1,100 videos from a small number of endorsed creators were reviewed, and a majority were found to use non-live, look-alike versions of a trading interface rather than the real platform, with combined viewership reported in the hundreds of millions across major social platforms.

The claim under review: that promotional videos shown to prospective bettors — some naming specific markets and profit figures — depicted trades staged on look-alike sites rather than executed on the real platform, and that at least some depicted wins would, on the real trading record, have been losses. One widely reported example describes a video showing a large profit on a single bet, where public reporting states dozens of real accounts placed the same bet and lost.

For any specific video or claim, the public trading record can answer a narrow set of questions, independent of what the video shows:

1. Did the referenced market exist at the stated time?
2. Did the stated price actually trade?
3. Do the stated size, side and timing tie to real fills by a real wallet?
4. Did that wallet actually acquire and hold the position claimed?
5. After sales, redemptions and fees, does the resulting profit or loss match what was shown?

That is the same fill-by-fill reconstruction MSR Decode runs on every wallet in the Scorecard, and it is offered here, without charge, to any reporter or researcher who can supply a specific wallet, market or video — For journalists.

The Council's investigation and its letters to the four named platforms are public and verifiable at the source linked above. Separately, multiple news organizations have reported — consistently with one another — on a review of a large sample of creator-posted trading videos, finding that most used non-live, look-alike versions of a trading interface rather than the real platform. Both are matters of public record as of this note.

MSR Decode has not independently reconstructed any specific wallet, trade or video named in this reporting — this note states the public record and the test, not a verified result on any individual case. Whether the Council's review results in a formal finding, and how any named platform responds, is unresolved. Whether any individual video reviewed by others reflects a real trade, a staged one, or something in between is a per-video question the test above can answer only once a specific wallet or market is supplied.