
Hornets vs. Pistons: O/U 209.5
2 of 2 top Polymarket traders hold Under (100%) · Under at 53¢ · $3K held · ended Oct 28
⚠️
Avoid
Under
2
Under 100%
2 arb excluded
$2.6K
$81.69
49.3¢ → 53¢
+7% since entry · 2 traders
Research grade
AvoidUnder at 53%
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.
- Fewer than 5 holdersEvery backtest needed 5+ holders; with fewer 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
2 of 2 top traders (100%)2 arbitrage traders dimmed1 small position dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
KE keeptheblueflagflyinghighARB<$100 | Underavg 50.7¢ | $1.0K | $1.4K | +$176.99 | 49% 559-583 (1142) |
| └ Under leg | Underavg 50.7¢ | $904.62 | $945.89 | +$362.51 | |
| └ Over leg | Overavg 48.3¢ | $464.81 | $452.64 | -$185.53 | |
GA gagarin59 | Underavg 49.2¢ | $1.0K | $1.1K | +$80.29 | 52% 657-608 (1265) |
![]() HRTradingARB<$100 | Overavg 53¢ | $56.28 | $56.2 | -$0.08 | 53% 3243-2909 (6152) |
| └ Over leg | Overavg 53¢ | $34.98 | $31.02 | -$3.96 | |
| └ Under leg | Underavg 44.8¢ | $21.3 | $25.18 | +$3.88 | |
MI mishipolis<$100 | Underavg 77¢ | $8.6 | $10 | +$1.4 | 50% 4446-4371 (8817) |
Invested
$1,048.19
Value
$1.4K
PnL
+$176.99
Record
49%
559-583 (1142)
Both legs:
Invested
$1,037.34
Value
$1.1K
PnL
+$80.29
Record
52%
657-608 (1265)
HRTradingARB<$100Invested
$56.28
Value
$56.2
PnL
-$0.08
Record
53%
3243-2909 (6152)
Both legs:
Invested
$8.6
Value
$10
PnL
+$1.4
Record
50%
4446-4371 (8817)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
53.0¢ price + 1.0¢ spread + 1.2¢ fee (Sports 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.