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Will Democrats win fewer than 7 of the US House seats bordering Mexico in the 2026 midterm elections?

4 of 8 top Polymarket traders hold No (50%) · No at 95¢ · $386 held · ended Nov 4

Yes5¢No95¢Ended Wed, Nov 4, 2026View on Polymarket
SIGNAL

⚖️

Neutral

No

Consensus Traders

8

No 50%

Total Value

$386.48

Combined PnL

$55.86

Smart Money Entry

76.1¢ → 95.3¢

+25% since entry · 4 traders

Research grade

NeutralNo at 95%

No measured edge, which here means a loss: the plain consensus (5+ holders, 60 %+, held to resolution) lost −3.0 % a trade after costs out of sample in the full-year test (n 86,296, 95 % CI −3.6 to −2.4 %).

  • Side priced over 95¢Full year, out of sample: 0.90–0.95 −0.2 % a trade (n 12,989, 95 % CI −0.6 to +0.3); above 95¢ little is left to win and the tests stop at 0.95.
  • Consensus under 60 %Every backtest started at 60 %+ of the holders; below that nothing was measured.

The rules come from our Oct 22 2026 backtest (one entry per market, held to resolution, after a 1¢ half-spread and Polymarket's taker fees). Our full-year test without hindsight (Oct 26 2026) found none of them profitable out of sample, and the plain consensus lost −3.0 % a trade. The grade describes the market; it is not a forecast, not an edge and not advice.

Smart Money Signal

No

4 of 8 top traders (50%)4 hold an outcome priced under 50%7 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Yes5%
No95%

Smart Money Breakdown by Outcome

No4 traders
Total Value$382.71
Total Shares386
Combined PnL+$87.53
Yes4 traders
Total Value$3.77
Total Shares125
Combined PnL-$31.67
No — 50%Yes — 50%

Signal Intelligence

Momentum

Surging

+12 pts consensus

Breadth

4 traders

Top 2 hold 90%

Freshness

Late

340h old

Flip Quality

Clean

0 consensus flips

Breadth vs concentrationCrowded

50% of non-arb traders are on No. Concentration is driven by the top two positions owning 90% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians
whaleYes 100% · 1
Diverging
sharpNo 100% · 1
Aligned
ctrYes 67% · 6
Diverging
Top 1000No 50% · 8
Aligned

Chat

EV Calculator

Consensus % is how many tracked traders hold a side, not a win probability.

Break-even chance96.4%

95.3¢ price + 1.0¢ spread + 0.1¢ fee (Politics 4%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$3.69
Max Loss
-$100.00
Shares
103.7

A market order pays the taker fee and crosses the spread (assumed 1.0¢); a limit order pays no fee but may not fill. The fee category is a guess from the title.

Market Info

Condition ID
0xb4e47bf6...48bd5b
Slug
will-democrats-win-fewer-than-7-us-house-seats-bordering-mexico-2026
Trade on Polymarket