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Will the highest temperature in Shanghai be 21°C on November 4?

9 of 14 top Polymarket traders hold No (64%) · No at 87¢ · $454 held · ends Nov 4

Yes14¢No86¢Ends Wed, Nov 4, 2026View on Polymarket
SIGNAL

⚖️

Neutral

No

Consensus Traders

14

No 64%

Total Value

$454.44

Combined PnL

-$25.79

Smart Money Entry

78.8¢ → 86.5¢

+10% since entry · 9 traders

Research grade

NeutralNo at 87%

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 %).

  • 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

No

9 of 14 top traders (64%)5 hold an outcome priced under 50%13 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Yes14%
No87%

Smart Money Breakdown by Outcome

No9 traders
Total Value$348.68
Total Shares413
Combined PnL+$14.03
Yes5 traders
Total Value$105.77
Total Shares664
Combined PnL-$39.83
No — 64%Yes — 36%

Signal Intelligence

Momentum

Flat

+0 pts consensus

Breadth

3 traders

Top 2 hold 97%

Freshness

Mature

24h old

Flip Quality

Clean

0 consensus flips

Breadth vs concentrationCrowded

60% of non-arb traders are on No. Concentration is driven by the top two positions owning 97% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians
whaleNo 100% · 1
Aligned
ctrNo 100% · 2
Aligned
Top 1000No 60% · 5
Aligned

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EV Calculator

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

Break-even chance88.0%

86.5¢ price + 1.0¢ spread + 0.5¢ fee (Other / General 5%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$13.58
Max Loss
-$100.00
Shares
113.6

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
0x35bce03a...eb9fe3
Slug
highest-temperature-in-shanghai-on-november-4-2026-21c
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