TOTAL VOLUME:

$134.2b

24H VOL:

$126,590,312

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,439,516,703

404,175

Markets across

30,277

events

MATCHED EVENTS:

2,685

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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MA-01 Democratic primary: Jeromie Whalen vote percent
kalshi

MA-01 Democratic primary: Jeromie Whalen vote percent

Volume:
$15,546

At least 30%

 - Kalshi

At least 30% - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 9, 2026

Closed: Sep 9, 6:46 PM EST

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

At least 30%

View
100%
1%
Yes 100¢No 0¢
100¢
N/A
$2,935
N/A
N/A
$2,335
11mo 6d
Yes
kalshi

At least 25%

View
100%
2%
Yes 100¢No 0¢
100¢
N/A
$2,630
N/A
N/A
$2,185
11mo 6d
Yes
kalshi

At least 35%

View
100%
1%
Yes 100¢No 0¢
100¢
N/A
$2,542
N/A
N/A
$1,677
11mo 6d
Yes
kalshi

At least 40%

View
100%
1%
Yes 100¢No 0¢
100¢
N/A
$2,530
N/A
N/A
$2,417
11mo 6d
Yes
kalshi

At least 45%

View
100%
Yes 100¢No 0¢
100¢
N/A
$1,659
N/A
N/A
$862
11mo 6d
Yes
kalshi

At least 50%

View
0%
1%
Yes 0¢No 100¢
100¢
N/A
$3,249
N/A
N/A
$2,666
11mo 6d
No
Total markets: 6

Description

This event tracks the performance of Jeromie Whalen in the 2026 Massachusetts 1st Congressional District Democratic primary, focusing on the share of votes he receives compared to all valid votes cast. The outcome depends on whether his vote percentage meets or exceeds specific thresholds. Results are determined solely by official, certified election data.

Kalshi

The event resolves based on the certified percentage of the popular vote received by Jeromie Whalen in the 2026 MA-01 Democratic primary, compared against multiple threshold ranges from 25% to 50% up to 100%. If his vote share falls within any of these specified ranges—including both endpoints of each range—the corresponding market resolves to Yes. Vote percentages are calculated by dividing the total valid votes Whalen receives by the total number of valid votes cast, then multiplied by 100 and rounded to the specified decimal precision. Only certified, official results are used for resolution; preliminary counts, write-in votes (if included in certified results), and invalid/spoiled/rejected ballots (excluded from both numerator and denominator) do not affect the outcome. In elections using multiple rounds such as ranked-choice voting, the percentage is determined based on the specified round or the first round if unspecified.

Frequently asked questions

On Kalshi, this dashboard tracks the latest odds, price history, and 24-hour volume of the MA-01 Democratic primary vote race. It shows how traders on the platform are pricing the likelihood of different vote outcomes, with total volume at $15,546 and 24-hour volume at $208. The page updates in real time to reflect market sentiment and trading activity as the primary approaches.

This market resolves around Sep 1, 2027, with the outcome confirmed once the vote results are verifiable from credible public reporting. The final percentage will be calculated from official election returns, closing the market based on the actual vote tallies reported after the primary election day.