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Spread: Celtics (-21.5)

2 of 6 top Polymarket traders hold Bulls (33%) · Bulls at 76¢ · $10K held · ended Oct 26

Celtics24¢Bulls76¢Ended Mon, Oct 26, 2026View on Polymarket
SIGNAL

⚠️

Avoid

Bulls

Consensus Traders

6

Bulls 33%

3 arb excluded

Total Value

$10.3K

Combined PnL

$718.75

Smart Money Entry

53.2¢ → 76¢

+43% since entry · 2 traders

Research grade

AvoidBulls at 76%

Matches a pattern that lost clearly more than the trading costs in the backtests.

  • BasketballBasketball lost in both windows: −12.0 % a trade in spring (95 % CI −22 to −2), −9.2 % in October.
  • Spread or totalSpreads 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¢)0.70–0.90 was about break-even after costs, +0.4 % a trade (n 4,327); 0.60–0.95 with 70 %+ and $10k+ +2.9 % (n 955). The consensus beats its price by 2–3 points here, about what the costs take.

Backtest of Oct 22 2026: one entry per market, held to resolution, after a 1¢ half-spread and Polymarket's taker fees. The grade never goes above “Research candidate”: no rule passed the multiple-testing check. It is not a forecast and not advice.

Smart Money Signal

Bulls

2 of 6 top traders (33%)3 arbitrage traders dimmed4 hold an outcome priced under 50%5 small positions dimmed (<$100 invested)

Market Activity
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Outcome Probabilities

Celtics24%
Bulls76%

Smart Money Breakdown by Outcome

Bulls2 traders
Total Value$2.5K
Total Shares3,396
Combined PnL+$740.12
Celtics4 traders
Total Value$64.52
Total Shares253
Combined PnL-$21.37
Bulls — 33%Celtics — 67%

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EV Calculator

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

Break-even chance77.9%

76.0¢ price + 1.0¢ spread + 0.9¢ fee (Sports 5%). Win more often than this and the bet pays.

Expected Value—
Expected ROIenter your estimate
Max Profit
+$28.39
Max Loss
-$100.00
Shares
128.4

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
0xdb7c7b6e...082fb7
Slug
nba-chi-bos-2026-10-26-spread-home-21pt5
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