TOTAL VOLUME:
$116.5b
24H VOL:
$70,467,699
24H TRANSACTIONS:
1,361,103,189
OPEN INTEREST:
$1,139,122,135
330,715
Markets across
33,075
events
MATCHED EVENTS:
4,023
PLATFORM COVERAGE:
5
Polymarket:
42%
VS.
Kalshi:
58%
Democratic party
- Kalshi
Democratic party - Kalshi
57%
1W
News
Positive
Negative
Neutral
Hover marker for details
Aug 19
Aug 20
Aug 22
Aug 23
Aug 24
Aug 25
Aug 26
Vol.
$98.6k
·
Resolves Jan 4, 2027
$
This market tracks whether Democrats will win the Senate race in Ohio. On Kalshi, the current probability that Democrats will win is 51.0%, while Republicans have a 50.0% chance. The outcome will be resolved based on the party of the senator sworn in for the term beginning in 2027. Watch for the swearing-in of the Ohio senator on 2027-01-04, which will determine the market result.
Resolution is determined by which party's representative is sworn in as Senator of Ohio for the term beginning in 2027. The market resolves to Yes if either a Republican or Democratic party representative assumes the office, with each party having a separate market outcome.
The Ohio Senate winner market resolves on Jan 4, 2027, following the official election results. The outcome is determined by which candidate wins the most votes in the 2026 Ohio Senate race. Resolution occurs after vote counting is complete and the winner is certified by Ohio election authorities. Traders should monitor official state announcements and news coverage in the days following the election to confirm the final result and market settlement.
Key catalysts for Ohio Senate winner include candidate announcements, debate performances, major endorsements, and shifts in voter registration or turnout models. Economic data, national political momentum, and campaign spending can also influence trader sentiment. Polling releases—especially late-stage surveys—often trigger sharp price moves as the market reprices probabilities. Unexpected candidate statements, scandals, or external events affecting Ohio voters may create volatility. Monitor news flow and betting volume spikes to identify when the market is reacting to new information ahead of Jan 4, 2027.