TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 9, 6:50 PM EST
Kalshi
The 2026 Massachusetts Democratic Senate primary will test the electoral strength of incumbent Ed Markey against potential challengers. Voters in the state will choose their preferred candidate, with the outcome reflecting Markey's ability to secure support from the party's base. The contest offers insight into shifting political dynamics within the state's Democratic electorate.
All markets depend on Ed Markey’s margin of victory in the 2026 Massachusetts Democratic Senate primary, defined as the percentage difference between Markey’s vote share and that of his nearest rival. Margins are calculated exclusively from valid votes cast for candidates in the primary, with any votes for Markey under multiple party listings or duplicate entries aggregated to avoid double-counting. Each market corresponds to a specific margin threshold: a "Yes" outcome occurs only if Markey’s margin equals or exceeds the stated percentage (e.g., ≥5%, ≥10%, etc.), while a "No" outcome applies if the margin falls below that threshold. No rounding is applied to the final margin percentage, and intervals are structured such that the lower bound is inclusive and the upper bound exclusive (e.g., exactly 6% resolves in the ≥6% market, not ≥5%). If Markey does not win outright, the margin is treated as negative, and if he ties for first place, the margin is zero. These rules ensure precise, unambiguous resolution based solely on official primary results.
This market resolves around Sep 1, 2027, with the outcome confirmed once the election results are verifiable from credible public reporting. The final margin will be calculated from official vote tallies, closing this market based on the actual percentage difference between Ed Markey and his nearest Democratic rival.