
Club Atlético de Madrid vs. FC Barcelona: O/U 5.5
3 of 15 top Polymarket traders hold Under (20%) · Under at 87¢ · $55K held · ended Nov 8
⚖️
Neutral
Under
15
Under 20%
3 arb excluded
$55.1K
$-2.0K
78.8¢ → 86.5¢
+10% since entry · 3 traders
Research grade
NeutralUnder at 87%
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 %).
- 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.
- 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
3 of 15 top traders (20%)3 arbitrage traders dimmed12 hold an outcome priced under 50%5 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Flat
+0 pts consensus
Breadth
2 traders
Top 2 hold 100%
Freshness
Fresh
0h old
Flip Quality
Clean
0 consensus flips
33% of non-arb traders are on Under. Concentration is driven by the top two positions owning 100% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
BI bigbeliever | Underavg 78.7¢ | $42.5K | $42.4K | -$81.56 | — 2-3 (5) |
GO GoalLineGhostARB<$100 | Underavg 81.9¢ | $4.2K | $3.5K | -$653.67 | 50% 32547-32694 (65241) |
| └ Under leg | Underavg 81.9¢ | $2.3K | $2.5K | +$131.06 | |
| └ Over leg | Overavg 23.5¢ | $1.8K | $1.1K | -$784.73 | |
FL FlaznorpARB<$100 | Overavg 24.2¢ | $4.2K | $3.0K | $-1.2K | 51% 47136-44473 (91609) |
| └ Over leg | Overavg 24.2¢ | $3.2K | $2.0K | $-1.2K | |
| └ Under leg | Underavg 82.1¢ | $1.0K | $1.1K | +$36.62 | |
MI MinevaJ | Underavg 84¢ | $1.7K | $1.8K | +$70 | 56% 1205-933 (2138) |
![]() RN1CTR | Overavg 21.7¢ | $2.9K | $1.7K | $-1.2K | 53% 70182-61748 (131930) |
SN SnakeBallARB<$100 | Overavg 20¢ | $1.6K | $1.1K | -$498.1 | 50% 48547-48163 (96710) |
| └ Over leg | Overavg 20¢ | $1.3K | $839.02 | -$503.41 | |
| └ Under leg | Underavg 86¢ | $304.51 | $309.82 | +$5.31 | |
CI cigarettesCTR | Overavg 21¢ | $1.1K | $625 | -$425 | 50% 65477-65792 (131269) |
NO NordhavenCapCTR | Overavg 16¢ | $318.08 | $268.38 | -$49.7 | 56% 2667-2054 (4721) |
OM omnibus-076daaCTR | Overavg 18¢ | $223.53 | $198.69 | -$24.84 | 50% 23449-23463 (46912) |
LU LuckyLooCTR | Overavg 20¢ | $209.02 | $141.26 | -$67.76 | 46% 30568-35672 (66240) |
38 38791873984189CTR | Overavg 24.1¢ | $256.95 | $133.54 | -$123.41 | 48% 70249-75962 (146211) |
AN Anon455CTR | Overavg 23¢ | $230 | $125 | -$105 | 54% 3933-3292 (7225) |
PA Pan9XCTR | Overavg 21.2¢ | $126.93 | $75.71 | -$2.15 | 52% 27203-24713 (51916) |
GH ghorrock<$100 | Underavg 81.4¢ | $66.11 | $47.89 | +$1.01 | 57% 24661-18268 (42929) |
LI LightParadoxCTR<$100 | Overavg 24.3¢ | $12.16 | $6.74 | -$5.42 | 48% 2081-2289 (4370) |
LI LimousinCTR<$100 | Overavg 17¢ | $6.17 | $6.35 | +$0.18 | 49% 2142-2260 (4402) |
VE VenusianCTR<$100 | Overavg 17¢ | $5.9 | $6.07 | +$0.17 | 48% 2117-2339 (4456) |
0X 0x1bc32be106439240f59aa25668e613831a5cdc6eCTR<$100 | Overavg 16¢ | $1.92 | $1.5 | -$0.42 | 53% 3744-3342 (7086) |
Invested
$42,464.51
Value
$42.4K
PnL
-$81.56
Record
—
2-3 (5)
Invested
$4,185.01
Value
$3.5K
PnL
-$653.67
Record
50%
32547-32694 (65241)
Both legs:
Invested
$4,204.16
Value
$3.0K
PnL
$-1.2K
Record
51%
47136-44473 (91609)
Both legs:
Invested
$1,680
Value
$1.8K
PnL
+$70
Record
56%
1205-933 (2138)
RN1CTRInvested
$2,882.64
Value
$1.7K
PnL
$-1.2K
Record
53%
70182-61748 (131930)
Invested
$1,646.94
Value
$1.1K
PnL
-$498.1
Record
50%
48547-48163 (96710)
Both legs:
Invested
$1,050
Value
$625
PnL
-$425
Record
50%
65477-65792 (131269)
Invested
$318.08
Value
$268.38
PnL
-$49.7
Record
56%
2667-2054 (4721)
Invested
$223.53
Value
$198.69
PnL
-$24.84
Record
50%
23449-23463 (46912)
Invested
$209.02
Value
$141.26
PnL
-$67.76
Record
46%
30568-35672 (66240)
Invested
$256.95
Value
$133.54
PnL
-$123.41
Record
48%
70249-75962 (146211)
Invested
$230
Value
$125
PnL
-$105
Record
54%
3933-3292 (7225)
Invested
$126.93
Value
$75.71
PnL
-$2.15
Record
52%
27203-24713 (51916)
Invested
$66.11
Value
$47.89
PnL
+$1.01
Record
57%
24661-18268 (42929)
Invested
$12.16
Value
$6.74
PnL
-$5.42
Record
48%
2081-2289 (4370)
Invested
$6.17
Value
$6.35
PnL
+$0.18
Record
49%
2142-2260 (4402)
Invested
$5.9
Value
$6.07
PnL
+$0.17
Record
48%
2117-2339 (4456)
Invested
$1.92
Value
$1.5
PnL
-$0.42
Record
53%
3744-3342 (7086)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
86.5¢ price + 1.0¢ spread + 0.5¢ 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.
Market Info
Traders in this Market
bigbeliever
Under — $42.4K
GoalLineGhost
ARBArbitrage — excluded
Flaznorp
ARBArbitrage — excluded
MinevaJ
Under — $1.8K

RN1
CTROver — $1.7K
SnakeBall
ARBArbitrage — excluded
cigarettes
CTROver — $625
NordhavenCap
CTROver — $268.38
omnibus-076daa
CTROver — $198.69
LuckyLoo
CTROver — $141.26