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%

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Elections
Massachusetts Democratic Senate primary margin of victory? (Ed Markey)
kalshi

Massachusetts Democratic Senate primary margin of victory? (Ed Markey)

Volume:
$94,981

Ed Markey, ≥10%

 - Kalshi

Ed Markey, ≥10% - Kalshi

1W

News

Positive

Negative

Neutral

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Vol.

·

Resolved Sep 9, 2026

Closed: Sep 9, 6:50 PM EST

kalshi

Kalshi

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

Ed Markey, ≥10%

View
100%
Yes 100¢No 0¢
100¢
N/A
$7,093
N/A
N/A
$2,991
11mo 6d
Yes
kalshi

Ed Markey, ≥25%

100%
Yes 100¢No 0¢
100¢
N/A
$6,833
N/A
N/A
$3,571
11mo 6d
Yes
kalshi

Ed Markey, ≥5%

100%
Yes 100¢No 0¢
100¢
N/A
$5,507
N/A
N/A
$5,204
11mo 6d
Yes
kalshi

Ed Markey, ≥15%

100%
Yes 100¢No 0¢
100¢
N/A
$3,674
N/A
N/A
$2,455
11mo 6d
Yes
kalshi

Ed Markey, ≥20%

100%
Yes 100¢No 0¢
100¢
N/A
$1,781
N/A
N/A
$1,545
11mo 6d
Yes
kalshi

Ed Markey, ≥30%

0%
2%
Yes 0¢No 100¢
100¢
N/A
$55,673
N/A
N/A
$15,406
11mo 6d
No
kalshi

Ed Markey, ≥35%

0%
Yes 0¢No 100¢
100¢
N/A
$5,046
N/A
N/A
$3,091
11mo 6d
No
kalshi

Ed Markey, ≥50%

0%
1%
Yes 0¢No 100¢
100¢
N/A
$4,491
N/A
N/A
$1,438
11mo 6d
No
kalshi

Ed Markey, ≥40%

0%
Yes 0¢No 100¢
100¢
N/A
$2,865
N/A
N/A
$1,309
11mo 6d
No
kalshi

Ed Markey, ≥45%

0%
1%
Yes 0¢No 100¢
100¢
N/A
$2,017
N/A
N/A
$1,513
11mo 6d
No
Total markets: 10

Description

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.

Kalshi

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.

Frequently asked questions

The dashboard for short_topic shows real-time odds and price history on Kalshi, along with current trading volume of $94,981 and 24-hour volume of $6. It offers a visual way to monitor how traders view Ed Markey’s expected margin against challengers, reflecting market sentiment leading up to the election.

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.