Smart money holds the underdog side

Most tracked traders hold Under, while the market favors Over (73%). 3 of 4 traders hold an outcome priced under 50%.

Historically, consensus on sides priced under 40¢ lost money after costs.

Kashima Antlers vs. Cerezo Ōsaka: O/U 2.5

3 of 4 top Polymarket traders hold Under (75%) · Under at 27¢ · $79 held · ended Oct 31

Over73¢Under27¢Ended Sat, Oct 31, 2026View on Polymarket

SIGNAL

⚠️

Avoid

Under

Consensus Traders

Under 75%

Total Value

$78.74

Combined PnL

-$32.93

Research grade

AvoidUnder at 27%

Matches a pattern that lost clearly more than the plain consensus in our tests.

Consensus side under 30¢Full year, out of sample: 0.05–0.30 lost −8.1 % a trade (n 11,568), under 0.20 −20.5 % (n 3,615). Oct 22 backtest: −29.5 % (n 1,625). The strongest effect in every test.
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.

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

Under

3 of 4 top traders (75%)Underdog side (market favors Over 73%)3 hold an outcome priced under 50%4 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Over73%

Under27%

Smart Money Breakdown by Outcome

Over1 trader

Total Value$42.83

Total Shares59

Combined PnL-$10.56

Under3 traders

Total Value$35.91

Total Shares110

Combined PnL-$22.37

Over — 25%Under — 75%

Trader	Position	Invested	Value	PnL	Record
SN SnakeBall<$100	Overavg 91¢	$53.39	$42.83	-$10.56	50% 33353-32915 (66268)
TO topdogbigboiCTR<$100	Underavg 49¢	$54.26	$33.33	-$20.92	49% 7885-8203 (16088)
HRTradingCTR<$100	Underavg 41.3¢	$2.76	$1.8	-$0.96	53% 4540-4093 (8633)
VeryLucky888CTR<$100	Underavg 44¢	$1.27	$0.78	-$0.49	58% 41846-30383 (72229)

SnakeBall<$100

Over

Invested

$53.39

Value

$42.83

PnL

-$10.56

Record

50%

33353-32915 (66268)

topdogbigboiCTR<$100

Under

Invested

$54.26

Value

$33.33

PnL

-$20.92

Record

49%

7885-8203 (16088)

HRTradingCTR<$100

Under

Invested

$2.76

Value

$1.8

PnL

-$0.96

Record

53%

4540-4093 (8633)

VeryLucky888CTR<$100

Under

Invested

$1.27

Value

$0.78

PnL

-$0.49

Record

58%

41846-30383 (72229)

Research grade

AvoidUnder at 27%

Matches a pattern that lost clearly more than the plain consensus in our tests.

Consensus side under 30¢Full year, out of sample: 0.05–0.30 lost −8.1 % a trade (n 11,568), under 0.20 −20.5 % (n 3,615). Oct 22 backtest: −29.5 % (n 1,625). The strongest effect in every test.
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.

Smart Money Signal

Under

3 of 4 top traders (75%)Underdog side (market favors Over 73%)3 hold an outcome priced under 50%4 small positions dimmed (<$100 invested)

Chat

EV Calculator

Your estimated chance that Under wins (%)

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

Stake (USDC)

Break-even chance29.0%

27.0¢ price + 1.0¢ spread + 1.0¢ fee (Sports 5%). Win more often than this and the bet pays.

Expected Value—

Expected ROIenter your estimate

Max Profit

+$244.73

Max Loss

-$100.00

344.7

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.