Will the Republicans win the Michigan Senate race in 2026?

Prediction markets currently give a 21% probability that Will the Republicans win the Michigan Senate race in 2026?. This contract trades at 21¢ on Polymarket. The Republican Michigan Senate contract is pricing in a heavily Democratic-favored race at 19¢, with an extraordinarily high implied yield of 778.3% on the Yes side suggesting severe underpricing relative to historical Republican competitiveness in the state.

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21¢
Bid/Ask 20/22¢·Spread 2¢·Vol $114.16·OI $40,063.167·195d remaining
0x3fd189cac9280dfc49a07115581e8d4c9e0b7e1c1e8580a44e9ff3d74e39cf2d
7-day price83 snapshots · 20 regime
22¢21¢ current
Apr 916¢Apr 21

Analysis

4d ago

The Republican Michigan Senate contract is pricing in a heavily Democratic-favored race at 19¢, with an extraordinarily high implied yield of 778.3% on the Yes side suggesting severe underpricing relative to historical Republican competitiveness in the state. The 7-day price movement from 16¢ to 19¢ indicates recent Democratic momentum, though the $203.9 daily volume against $41k open interest reveals thin liquidity that could amplify volatility as we approach the 2026 election. The 4/10 Cliff Risk Index warrants caution, as binary outcomes in Senate races can shift sharply on candidate quality, national environment, or late-breaking events.

Resolution rules

This market will resolve according to the winner of the 2026 midterm Michigan U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Indicators

IY (Yes) 703.6%
IY (No) 49.7%
Adj IY 352%
CRI 4
▶ Full indicator table (4)
IndicatorValue
IY (Yes)703.6%
IY (No)49.7%
Adj IY352%
CRI4

Regime

Label
neutral
Score
0.341
Spread
2¢
Computed
4/21/2026, 8:26:24 PM
Observability lowEvent type political
Indicators computed 4/21/2026, 8:23:18 PM

Trade

View on polymarketsf trade 0x3fd189cac9280dfc49a07115581e8d4c9e0b7e1c1e8580a44e9ff3d74e39cf2d yes 100

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