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Prediction markets · /markets

Where bettors are putting money — and where they disagree with the polls.

Live prices from Polymarket, Kalshi, PredictIt, and Manifold, joined to our polling consensus and model output. We report market signal as one input among many — not as financial advice.

1,448 active contracts504 races covered1,675,458 historical quotes$1.2M 24h volume (reported)6 closed → resolvedUPDATED
1 · Chamber-implied probabilities
Synthesized · volume-weighted across platforms
2026 · U.S. Senate · P(D-majority)
44%
EARLIERNOW
D MAJ.R MAJ.
0.0pp recent trend
227 CONTRACTS · 4 PLATFORMS · VOL-WEIGHTED
PER-DISTRICT MC: D 2%
2026 · U.S. House · P(D-majority)
82%
EARLIERNOW
D MAJ.R MAJ.
+1.0pp recent trend
1000 CONTRACTS · 3 PLATFORMS · VOL-WEIGHTED
PER-DISTRICT MC: D 92%
2026 · Governorships · P(D-majority)
99%
EARLIERNOW
D MAJ.R MAJ.
-1.0pp recent trend
205 CONTRACTS · 4 PLATFORMS · VOL-WEIGHTED
2 · Biggest movers

Top contracts that gained or lost the most on the D-side of the contract over the selected window.

Top risers · D-side ¢
NM-2 HouseDemocratic PartyKAL90¢+9¢
ME SenateDemocratic partyKAL59¢+8¢
ME SenateDemocratic PartyPRD56¢+7¢
MI-7 HouseRepublican PartyPOLY26¢+7¢
MT-1 HouseDemocratic PartyKAL38¢+7¢
Top fallers · D-side ¢
AK GovernorBegichPOLY20¢-9¢
ME SenateRepublican partyKAL42¢-8¢
ME SenateRepublicanPOLY42¢-7¢
ME SenateRepublican PartyPRD45¢-7¢
TX-28 HouseRepublican PartyKAL16¢-7¢
3 · Markets vs polling model · where they disagree

When the price moves before the polls do.

Bettors price in things polls miss: debate moments, ad-buy timing, fundraising shock, demographic turnout shifts. When the market and our polling model disagree by more than eight points, someone is wrong — and historically it's been the polls roughly as often as the markets. Sorted by absolute disagreement.

Race · candidateMarket consensusModel predictionGapDirection of betCombined volume
OH Governor
94¢ D
ACROSS 2 PLATFORMS
7¢ D
POLIAGG MODEL
+87pp
check
Markets more bullish on D
THIN · FEW TRADES
AK Governor
68¢ D
ACROSS 2 PLATFORMS
0¢ D
POLIAGG MODEL
+68pp
check
Markets more bullish on D
THIN · FEW TRADES
TN-9 House
14¢ D
MARKET-PRICED
66¢ D
POLIAGG MODEL
-52pp
check
Markets more bullish on R
THIN · FEW TRADES
TX-9 House
16¢ D
MARKET-PRICED
66¢ D
POLIAGG MODEL
-50pp
check
Markets more bullish on R
THIN · FEW TRADES
CA-1 House
92¢ D
MARKET-PRICED
44¢ D
POLIAGG MODEL
+48pp
check
Markets more bullish on D
THIN · FEW TRADES
UT-1 House
92¢ D
MARKET-PRICED
48¢ D
POLIAGG MODEL
+44pp
check
Markets more bullish on D
THIN · FEW TRADES
CA-48 House
86¢ D
MARKET-PRICED
42¢ D
POLIAGG MODEL
+44pp
check
Markets more bullish on D
THIN · FEW TRADES
MO-5 House
16¢ D
MARKET-PRICED
59¢ D
POLIAGG MODEL
-43pp
check
Markets more bullish on R
THIN · FEW TRADES
OH Senate
55¢ D
MARKET-PRICED
13¢ D
POLIAGG MODEL
+42pp
check
Markets more bullish on D
THIN · FEW TRADES
TX-32 House
24¢ D
MARKET-PRICED
64¢ D
POLIAGG MODEL
-40pp
check
Markets more bullish on R
THIN · FEW TRADES
AGREE · WITHIN 3PPWATCH · 3–7PPCHECK · 8PP+
4 · Cross-platform spreads

Same race, different prices.

Spreads above 5¢ can reflect platform liquidity, fee structures, KYC barriers, or genuine disagreement between trader populations. Arbing them in practice is harder than it looks. Informational only — not financial advice.

RaceMarketPolymarketKalshiPredictItManifoldMax spread14d
CT-5 HouseDemocratic Party wins94¢3¢n/an/a91¢
PA-10 HouseDemocratic Party wins70¢73¢94¢n/a24¢
NY-17 HouseDemocratic Party wins66¢75¢87¢n/a21¢
MT-1 HouseDemocratic Party wins26¢38¢n/an/a12¢
MT SenateRepublican wins84¢n/a95¢n/a11¢
NY-17 HouseRepublican Party wins28¢31¢20¢n/a11¢
IA SenateRepublican wins57¢n/a66¢n/a9¢
NE SenateRepublican wins63¢n/a72¢n/a9¢
MN SenateRepublican wins6¢10¢14¢n/a8¢
MN SenateDemocrat wins94¢91¢86¢n/a8¢
CLICK ANY ROW TO REVEAL PER-PLATFORM PRICES · CROSS-PLATFORM “SAME RACE” MATCHES ARE FUZZY
5 · Most-traded contracts

Where the dollars actually are.

Ranked by 24h dollar volume where available. Manifold uses play-money mana (M$). PredictIt is share-counted. Kalshi and Polymarket publish 24h dollar volume; the others report it inconsistently.

#PlatformQuestionPrice24h volume7d Δ7d
01KALMaine Senate winner? (Party)59¢$480k 24h+1¢
02KALMaine Senate winner? (Party)42¢$343k 24h0¢
03KALWhich party will win the U.S. Senate?42¢$67k 24h+1¢
04KALWhich party will win the U.S. Senate?58¢$37k 24h-1¢
05POLYWill the Republican Party control the House after the 2026 Midterm elections?16¢$31k 24h-2¢
06KALWhich party will win the U.S. House?18¢$30k 24h0¢
07POLYWill the Democratic Party control the Senate after the 2026 Midterm elections?46¢$23k 24h+4¢
08KALTexas Senate winner?59¢$19k 24h-1¢
6 · New listings · last 7 days

What platforms are targeting next.

A new market on a race often precedes news pickup by 24–48 hours.

0 LISTED
No new markets listed in the last 7 days.
7 · Closing soon · < 30 days to resolution

The home stretch.

Bettors price in late polls, ad buys, and last-minute events. Activity tends to spike in the final two weeks.

Days leftRaceCandidatePlatformCurrent price7d changeLink
2dMarket-implied Trump approval (Kalshi)KAL40¢0¢OPEN ↗
8 · Per-platform comparison

Four very different rooms.

Polymarket
CONTRACTS
1,056
RACES COVERED
502
VOLUME
$73k
CALLS RIGHT
n/a yet
Carries the majority of total dollar volume. USDC-denominated. KYC by jurisdiction.
SHARE OF $ VOLUME6%
Kalshi
CONTRACTS
284
RACES COVERED
130
VOLUME
$1.1M
CALLS RIGHT
n/a yet
Broadest race coverage (CFTC-regulated event contracts). Lower per-contract volume.
SHARE OF $ VOLUME94%
PredictIt
CONTRACTS
97
RACES COVERED
38
VOLUME
CALLS RIGHT
n/a yet
Share-counted liquidity. $850 per-contract cap. Older, US-based trader population.
SHARE OF $ VOLUME0%
Manifold
CONTRACTS
7
RACES COVERED
6
VOLUME
CALLS RIGHT
n/a yet
Play-money mana (M$). Useful for niche / pre-listing markets ignored by paid platforms.
SHARE OF $ VOLUME0%

Polymarket carries the majority of dollar volume; Kalshi has the broadest race coverage; PredictIt traders skew older with a $850 per-contract cap; Manifold uses play-money mana. Treat them as different sample populations, not interchangeable price sources.

9 · Resolution backtest · how often markets are right
0¢25¢50¢75¢100¢NOYESPERFECT CAL.CLOSING YES PRICE
POLYKALPRDMFD

How often does a 70¢ market actually happen 70% of the time?

Each dot will be a contract that's closed: the x-axis its final YES price, the y-axis whether it actually resolved YES. A perfectly-calibrated market sits along the diagonal — closing at 70¢ when the underlying happens roughly 70% of the time.

⚠ Only 6 markets have closed since we started tracking. Calibration becomes meaningful at 30+ resolutions, so this fills in as races are called.
10 · How prediction markets work · why we publish this

A contract trading at 64¢ YES means the market estimates a 64% probability that the question resolves YES — once you discount platform fees and the cost of holding capital until resolution. The price isn't a forecast made by one model; it's an aggregation of every trade made by every bettor with skin in the game.

Why markets can disagree with polls. Bettors price in signals polls don't catch: debate moments, ad-buy timing, fundraising surprises, electoral-college math, demographic turnout shifts. When the consensus market price moves before any new poll is released, that's usually what's happening.

Why markets can be wrong. Thin liquidity makes single trades move prices. Manipulation attempts happen. News shocks. Platform fees skew long-tail prices upward. Withdrawal limits depress demand. The trader population is biased — toward US-based, capital-flexible, politically-engaged men — and so are its blind spots.

Why we publish this. We report market signal alongside polling consensus and our forecast model so readers can triangulate between three imperfect signals — not because we endorse betting. We don't link to “open account” buttons. We don't sell trade ideas. We tell you where the dollars are because where the dollars are is information.