
Resolved No on 9 Sep 2026.
The last daily price before settlement had No at 100%. Yes opened at 14.5% on 21 Aug 2026. Before it settled, the high was 38.5% on 27 Aug 2026 and the low 0.1% on 9 Sep 2026. Its largest one-day move was 23 points up, to 37.5% on 22 Aug 2026. $2.92K traded over the market's life.
13 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Sep 9, 10:54 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 20 points, 21 Aug 2026 – 9 Sep 2026
| Observed | Yes price |
|---|---|
| 21 Aug 2026 | 14.5% |
| 9 Sep 2026 | 0.1% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| Dr.PNL | Yes | 274.21 |
| Indigo Signal 2966 | No | 272.46 |
| .Menthe | Yes | 35.09 |
| PPMT | Yes | 29.79 |
Every wallet's public record, and 80,000 ranked by lifetime P&L: Polymarket leaderboard
The Massachusetts state primary is scheduled to be held on September 1, 2026. This market will resolve according to the margin of victory between the top two candidates in the Massachusetts Democratic Primary for U.S. Senator. For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket. If two candidates receive the exact same highest number of valid votes and both are listed, this market will resolve to the lowest bracket for the tied candidate whose last name comes first alphabetically. If only one of the tied candidates is listed, this market will resolve to the lowest bracket for that listed candidate. If neither tied candidate is listed, this market will resolve to “Other.” This market will resolve based on the official vote count once the count has been made official. If the results of the specified election are not known definitively by December 31, 2026, 11:59 PM ET, this market will resolve to “Other”. The primary resolution source for this market will be information from the Commonwealth of Massachusetts, such as official statewide results published by the Massachusetts Secretary of the Commonwealth (https://www.sec.state.ma.us/); however, an overwhelming consensus of credible reporting may suffice. If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
Official listing: polymarket.com/event/massachusetts-democratic-senate-primary-margin-of-victory
| GuyFromTinder | Yes | 26 |
| TENETENET | Yes | 10 |
| a5533 | Yes | 10 |
| Cyber777 | Yes | 7.35 |
| Wordy-Doctrine | Yes | 5 |
| triklozoid | Yes | 5 |
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