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Will Sébastien Lecornu win the 2027 French presidential election?

1 of 13 top Polymarket traders hold No (8%) · No at 100¢ · $1K held · ends Apr 19, 2027

Yes<1¢No>99¢Ends Mon, Apr 19, 2027View on Polymarket
SIGNAL

⚖️

Neutral

No

Consensus Traders

13

No 8%

Total Value

$1.2K

Combined PnL

-$668.29

Research grade

NeutralNo at 100%

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

1 of 13 top traders (8%)12 hold an outcome priced under 50%8 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Yes0%
No100%

Smart Money Breakdown by Outcome

No1 trader
Total Value$1.1K
Total Shares1,060
Combined PnL+$9.24
Yes12 traders
Total Value$121.9
Total Shares115,650
Combined PnL-$677.53
No — 8%Yes — 92%

Signal Intelligence

Momentum

Flat

+1 pts consensus

Breadth

1 traders

Top 2 hold 100%

Freshness

Late

4874h old

Flip Quality

Choppy

46 consensus flips

Breadth vs concentrationCrowded

8% of non-arb traders are on No. Concentration is driven by the top two positions owning 100% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians
whaleYes 100% · 2
Diverging
sharpYes 75% · 4
Diverging
ctrYes 100% · 9
Diverging
Hand-pickedYes 100% · 4
Diverging
Top 1000Yes 90% · 10
Diverging

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EV Calculator

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

Break-even chance99.9%

99.9¢ 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
+$0.10
Max Loss
-$100.00
Shares
100.1

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
0x934225ab...3f013f
Slug
will-sbastien-lecornu-win-the-2027-french-presidential-election
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