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Spread: Celtics (-7.5)

2 of 13 top Polymarket traders hold Raptors (15%) · Raptors at 54¢ · $24K held · ends Nov 12

Celtics47¢Raptors53¢Ends Thu, Nov 12, 2026View on Polymarket
SIGNAL

⚠️

Avoid

Raptors

Consensus Traders

13

Raptors 15%

1 arb excluded

Total Value

$23.9K

Combined PnL

-$29.17

Smart Money Entry

51.6¢ → 53.5¢

+4% since entry · 2 traders

Research grade

AvoidRaptors at 54%

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.
  • Side priced 50–60¢Full year, out of sample: 0.50–0.70 lost −2.9 % a trade (n 23,546, 95 % CI −3.9 to −1.9).

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

Raptors

2 of 13 top traders (15%)1 arbitrage trader dimmed11 hold an outcome priced under 50%3 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Celtics47%
Raptors54%

Smart Money Breakdown by Outcome

Raptors2 traders
Total Value$13.9K
Total Shares26,534
Combined PnL+$256.56
Celtics11 traders
Total Value$9.5K
Total Shares20,193
Combined PnL-$285.73
Raptors — 15%Celtics — 85%

Signal Intelligence

Momentum

Building

-3 pts consensus

Breadth

1 traders

Top 2 hold 100%

Freshness

Fresh

4h old

Flip Quality

Clean

0 consensus flips

Breadth vs concentrationCrowded

10% of non-arb traders are on Raptors. 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
ctrCeltics 86% · 7
Diverging
Hand-pickedCeltics 100% · 1
Diverging
Top 1000Celtics 89% · 9
Diverging

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EV Calculator

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

Break-even chance55.7%

53.5¢ price + 1.0¢ spread + 1.2¢ fee (Sports 5%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$79.40
Max Loss
-$100.00
Shares
179.4

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
0x30033a38...ddc891
Slug
nba-bos-tor-2026-11-11-spread-away-7pt5
Trade on Polymarket