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Spread: Raptors (-3.5)

4 of 7 top Polymarket traders hold Celtics (57%) · Celtics at 73¢ · $840 held · ends Nov 12

Raptors27¢Celtics73¢Ends Thu, Nov 12, 2026View on Polymarket
SIGNAL

⚠️

Avoid

Celtics

Consensus Traders

7

Celtics 57%

Total Value

$840.33

Combined PnL

$0.13

Smart Money Entry

74.7¢ → 73¢

-2% since entry · 4 traders

Research grade

AvoidCeltics at 73%

Matches a pattern that lost clearly more than the plain consensus in our tests.

  • BasketballFull year, out of sample: basketball lost −4.8 % a trade (n 1,747, 95 % CI −9.2 to +0.3); Oct 22 backtest: −12.0 % and −9.2 % in its two windows.
  • Spread or totalOct 22 backtest: spreads and totals −14.5 % a trade in spring (95 % CI −27 to −1), +1.5 % in October: no edge.
  • Consensus under 60 %Every backtest started at 60 %+ of the holders; below that 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

Celtics

4 of 7 top traders (57%)3 hold an outcome priced under 50%4 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Raptors27%
Celtics73%

Smart Money Breakdown by Outcome

Celtics4 traders
Total Value$613.35
Total Shares841
Combined PnL-$14.99
Raptors3 traders
Total Value$226.97
Total Shares841
Combined PnL+$15.11
Celtics — 57%Raptors — 43%

Signal Intelligence

Momentum

Flat

+0 pts consensus

Breadth

4 traders

Top 2 hold 86%

Freshness

Fresh

0h old

Flip Quality

Clean

0 consensus flips

Breadth vs concentrationCrowded

80% of non-arb traders are on Celtics. Concentration is driven by the top two positions owning 86% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians
ctrCeltics 50% · 2
Aligned
Top 1000Celtics 80% · 5
Aligned

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EV Calculator

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

Break-even chance75.0%

73.0¢ price + 1.0¢ spread + 1.0¢ fee (Sports 5%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$33.40
Max Loss
-$100.00
Shares
133.4

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
0x8830f1a7...b0b0e6
Slug
nba-bos-tor-2026-11-11-spread-home-3pt5
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