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Will Republicans hold 47–49 Senate seats and 208+ House seats after the 2026 midterms?

7 of 10 top Polymarket traders hold No (70%) · No at 98¢ · $409 held · ends Nov 4

Yes2¢No98¢Ends Wed, Nov 4, 2026View on Polymarket
SIGNAL

⚖️

Neutral

No

Consensus Traders

10

No 70%

Total Value

$409.26

Combined PnL

-$34.69

Smart Money Entry

93.2¢ → 98.5¢

+6% since entry · 7 traders

Research grade

NeutralNo at 98%

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.

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

7 of 10 top traders (70%)3 hold an outcome priced under 50%9 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Yes2%
No98%

Smart Money Breakdown by Outcome

No7 traders
Total Value$390.77
Total Shares397
Combined PnL+$20.86
Yes3 traders
Total Value$18.49
Total Shares1,233
Combined PnL-$55.55
No — 70%Yes — 30%

Signal Intelligence

Momentum

Surging

+7 pts consensus

Breadth

7 traders

Top 2 hold 60%

Freshness

Fresh

1h old

Flip Quality

Clean

0 consensus flips

Breadth vs concentrationBalanced

70% of non-arb traders are on No. Concentration is driven by the top two positions owning 60% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians
The hand-picked list (1 on Yes) and the top 1000 (10 on No) disagree here.
whaleYes 50% · 2
Diverging
sharpNo 50% · 2
Aligned
ctrYes 100% · 2
Diverging
Hand-pickedYes 100% · 1
Diverging
Top 1000No 70% · 10
Aligned

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EV Calculator

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

Break-even chance99.5%

98.5¢ price + 1.0¢ spread + 0.0¢ fee (Politics 4%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$0.53
Max Loss
-$100.00
Shares
100.5

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
0x951ffdc4...a00f37
Slug
will-republicans-hold-4749-senate-seats-and-208-house-seats-after-the-2026-midterms-20260625152834697
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