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Massachusetts Democratic Senate Primary Winner

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Massachusetts Democratic Senate Primary Winner

Ed Markey 83%

Seth Moulton 14%

Ayanna Pressley 2.8%

Alexander Rikleen <1%

Polymarket
NEW

Ed Markey 83%

Seth Moulton 14%

Ayanna Pressley 2.8%

Alexander Rikleen <1%

Polymarket
NEW

Ed Markey

$3,886 Vol.

83%

Seth Moulton

$1,554 Vol.

14%

Ayanna Pressley

$1,530 Vol.

3%

Alexander Rikleen

$915 Vol.

<1%

This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts. If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.**Incumbent Sen. Ed Markey holds an 82.5% implied probability as the trader consensus favorite for Massachusetts' September 1 Democratic primary, driven by consistent double-digit polling leads over Rep. Seth Moulton and strong progressive backing.** A Suffolk University/Boston Globe poll conducted April 9-13 showed Markey leading 47%-30% among likely Democratic primary voters, expanding his edge as age concerns prove minimal despite his long tenure. Rep. Ayanna Pressley's March endorsement further consolidates support after she opted against running, while minor candidate Alexander Rikleen trails far behind. Markey's early April negative ad against Moulton, who pitches generational change, underscores campaign intensity, with Moulton at 14% reflecting his viable but uphill challenger status ahead of potential debates and fundraising pushes.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts.

If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$7,885
End Date
Sep 1, 2026
Market Opened
Dec 2, 2025, 3:26 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts. If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.
This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts. If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.**Incumbent Sen. Ed Markey holds an 82.5% implied probability as the trader consensus favorite for Massachusetts' September 1 Democratic primary, driven by consistent double-digit polling leads over Rep. Seth Moulton and strong progressive backing.** A Suffolk University/Boston Globe poll conducted April 9-13 showed Markey leading 47%-30% among likely Democratic primary voters, expanding his edge as age concerns prove minimal despite his long tenure. Rep. Ayanna Pressley's March endorsement further consolidates support after she opted against running, while minor candidate Alexander Rikleen trails far behind. Markey's early April negative ad against Moulton, who pitches generational change, underscores campaign intensity, with Moulton at 14% reflecting his viable but uphill challenger status ahead of potential debates and fundraising pushes.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts.

If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$7,885
End Date
Sep 1, 2026
Market Opened
Dec 2, 2025, 3:26 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Massachusetts. If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.

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Frequently Asked Questions

"Massachusetts Democratic Senate Primary Winner" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Ed Markey" at 83%, followed by "Seth Moulton" at 14%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 83¢ implies that the market collectively assigns a 83% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Massachusetts Democratic Senate Primary Winner" is a newly created market on Polymarket, launched on Dec 2, 2025. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Massachusetts Democratic Senate Primary Winner," browse the 4 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Massachusetts Democratic Senate Primary Winner" is "Ed Markey" at 83%, meaning the market assigns a 83% chance to that outcome. The next closest outcome is "Seth Moulton" at 14%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Massachusetts Democratic Senate Primary Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.