
Will the Republican Party hold exactly 51 Senate seats after the 2026 midterm elections?
7 of 12 top Polymarket traders hold No (58%) · No at 93¢ · $20K held
⚖️
Neutral
No
12
No 58%
$19.9K
$915.84
90¢ → 92.5¢
+3% since entry · 7 traders
Research grade
NeutralNo at 93%
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 %).
- 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
7 of 12 top traders (58%)5 hold an outcome priced under 50%6 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Cooling
+5 pts consensus
Breadth
7 traders
Top 2 hold 98%
Freshness
Late
4874h old
Flip Quality
Choppy
152 consensus flips
58% of non-arb traders are on No. Concentration is driven by the top two positions owning 98% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
CO cowcat | Noavg 90¢ | $17.4K | $18.0K | +$483.82 | 53% 1560-1362 (2922) |
![]() mombilCTR | Yesavg 1¢ | $101.91 | $640.02 | +$489.43 | 55% 1191-966 (2157) |
CO Contestable-ParfaitCTR | Yesavg 8.4¢ | $364.06 | $324.07 | -$39.99 | 38% 20-32 (52) |
![]() ScottyNoooCTR | Yesavg 8.1¢ | $69.15 | $302.48 | -$48.23 | 50% 1537-1513 (3050) |
![]() bernardbulletin | Noavg 92¢ | $247.94 | $250.64 | +$1.35 | 69% 987-450 (1437) |
EL Elias.Thornwell | Noavg 85.2¢ | $129.24 | $141.14 | +$11.9 | 76% 11352-3524 (14876) |
![]() UbuntuTrading<$100 | Noavg 86.5¢ | $85.1 | $85.56 | +$0.46 | 57% 3068-2356 (5424) |
TR troimCTR<$100 | Yesavg 5¢ | $50 | $85 | +$25 | 36% 397-691 (1088) |
EA EatprayloveCTR<$100 | Yesavg 9.8¢ | $62.2 | $48.37 | -$13.37 | 57% 766-585 (1351) |
PE peepeepooppoop<$100 | Noavg 84¢ | $42.4 | $46.67 | +$4.27 | 52% 2050-1868 (3918) |
WO wokerjoesleeper<$100 | Noavg 83.2¢ | $9.19 | $10.2 | +$1.01 | 33% 6263-12990 (19253) |
TT tttt123<$100 | Noavg 86¢ | $2.7 | $2.9 | +$0.2 | 72% 1535-585 (2120) |
Invested
$17,417.45
Value
$18.0K
PnL
+$483.82
Record
53%
1560-1362 (2922)
mombilCTRInvested
$101.91
Value
$640.02
PnL
+$489.43
Record
55%
1191-966 (2157)
Invested
$364.06
Value
$324.07
PnL
-$39.99
Record
38%
20-32 (52)
ScottyNoooCTRInvested
$69.15
Value
$302.48
PnL
-$48.23
Record
50%
1537-1513 (3050)
bernardbulletinInvested
$247.94
Value
$250.64
PnL
+$1.35
Record
69%
987-450 (1437)
Invested
$129.24
Value
$141.14
PnL
+$11.9
Record
76%
11352-3524 (14876)
UbuntuTrading<$100Invested
$85.1
Value
$85.56
PnL
+$0.46
Record
57%
3068-2356 (5424)
Invested
$50
Value
$85
PnL
+$25
Record
36%
397-691 (1088)
Invested
$62.2
Value
$48.37
PnL
-$13.37
Record
57%
766-585 (1351)
Invested
$42.4
Value
$46.67
PnL
+$4.27
Record
52%
2050-1868 (3918)
Invested
$9.19
Value
$10.2
PnL
+$1.01
Record
33%
6263-12990 (19253)
Invested
$2.7
Value
$2.9
PnL
+$0.2
Record
72%
1535-585 (2120)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
92.5¢ price + 1.0¢ spread + 0.2¢ 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.
Market Info
Traders in this Market
cowcat
No — $18.0K

mombil
CTRYes — $640.02
Contestable-Parfait
CTRYes — $324.07

ScottyNooo
CTRYes — $302.48

bernardbulletin
No — $250.64
Elias.Thornwell
No — $141.14

UbuntuTrading
No — $85.56
troim
CTRYes — $85
Eatpraylove
CTRYes — $48.37
peepeepooppoop
No — $46.67