
Will the Democratic Party win the MO-05 House seat?
6 of 8 top Polymarket traders hold Yes (75%) · Yes at 97¢ · $11K held · ends Nov 5
⚖️
Neutral
Yes
8
Yes 75%
$11.2K
$902.12
88.4¢ → 97.2¢
+10% since entry · 6 traders
Research grade
NeutralYes at 97%
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 %).
- Side priced over 95¢Full year, out of sample: 0.90–0.95 −0.2 % a trade (n 12,989, 95 % CI −0.6 to +0.3); above 95¢ little is left to win and the tests stop at 0.95.
- Quality net +3 or moreNot confirmed. Oct 22 backtest: net +3 when the consensus formed made +7.2 % a trade (n 358), with 5 events giving two thirds of it. Full year, out of sample, the closest rule (3+ proven winners, two thirds on the side) lost −1.9 % a trade (n 49,161, 95 % CI −2.6 to −1.1).
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
6 of 8 top traders (75%)2 hold an outcome priced under 50%1 small position dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Building
+8 pts consensus
Breadth
6 traders
Top 2 hold 82%
Freshness
Late
267h old
Flip Quality
Watch
2 consensus flips
75% of non-arb traders are on Yes. Concentration is driven by the top two positions owning 82% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
AN anoin123 | Yesavg 91.8¢ | $6.6K | $6.3K | +$343.18 | 47% 474-534 (1008) |
![]() mrworldwide | Yesavg 86.3¢ | $2.5K | $2.8K | +$317.31 | 69% 804-359 (1163) |
FU Fulgurator | Yesavg 91.7¢ | $1.1K | $1.1K | +$63.44 | 92% 61-5 (66) |
FL FlyingPlaty | Yesavg 95.8¢ | $441.46 | $448.19 | +$6.27 | 98% 982-16 (998) |
CO cowcat | Yesavg 19.1¢ | $53.38 | $332.6 | +$279.22 | 53% 1560-1362 (2922) |
OL OLOTH | Yesavg 96.9¢ | $125.95 | $126.43 | +$0.49 | 96% 757-31 (788) |
CB Cb94C437EA5e6f088c6c0C143c592ab8EFBedCTR | Noavg 9.4¢ | $152.06 | $49.18 | -$102.88 | 53% 6689-5886 (12575) |
HO HourglassCTR<$100 | Noavg 11.3¢ | $7.06 | $2.16 | -$4.9 | 77% 8889-2658 (11547) |
Invested
$6,555
Value
$6.3K
PnL
+$343.18
Record
47%
474-534 (1008)
mrworldwideInvested
$2,492.81
Value
$2.8K
PnL
+$317.31
Record
69%
804-359 (1163)
Invested
$1,053.82
Value
$1.1K
PnL
+$63.44
Record
92%
61-5 (66)
Invested
$441.46
Value
$448.19
PnL
+$6.27
Record
98%
982-16 (998)
Invested
$53.38
Value
$332.6
PnL
+$279.22
Record
53%
1560-1362 (2922)
Invested
$125.95
Value
$126.43
PnL
+$0.49
Record
96%
757-31 (788)
Invested
$152.06
Value
$49.18
PnL
-$102.88
Record
53%
6689-5886 (12575)
Invested
$7.06
Value
$2.16
PnL
-$4.9
Record
77%
8889-2658 (11547)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
97.2¢ price + 1.0¢ spread + 0.1¢ fee (Politics 4%). 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.