Will the highest temperature in Madrid be 23°C on October 31?
2 of 2 top Polymarket traders hold No (100%) · No at 93¢ · $233 held · ends Oct 31
⚖️
Neutral
No
2
No 100%
$232.98
-$0.69
94.5¢ → 92.9¢
-2% since entry · 2 traders
Research grade
NeutralNo at 93%
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 %).
- Fewer than 5 holdersEvery backtest needed 5+ holders; with fewer nothing was measured.
- Favourite (60–95¢)Full year, out of sample: 0.70–0.90 lost −0.9 % a trade (n 26,050, 95 % CI −1.5 to −0.3): the least bad band, still a loss. The Oct 22 backtest's +0.4 % (n 4,327) was not confirmed.
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
2 of 2 top traders (100%)1 small position dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
HE HellYeahTrader | Noavg 95¢ | $174.99 | $171.13 | -$3.86 | 55% 394-317 (711) |
24 241532532432<$100 | Noavg 92.9¢ | $58.5 | $61.85 | +$3.17 | 59% 1779-1231 (3010) |
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
92.9¢ price + 1.0¢ spread + 0.3¢ fee (Other / General 5%). Win more often than this and the bet pays.
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.