Smart money holds the underdog side

Most tracked traders hold Under, while the market favors Over (50%). 1 of 4 traders hold an outcome priced under 50%.

Liverpool FC vs. Arsenal FC: O/U 2.5

1 of 4 top Polymarket traders hold Under (25%) · Under at 50¢ · $7K held · ends Nov 1

Over50¢Under50¢Ends Sun, Nov 1, 2026View on Polymarket

SIGNAL

⚖️

Neutral

Under

Consensus Traders

Under 25%

Total Value

$6.9K

Combined PnL

$43.83

Research grade

NeutralUnder at 50%

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.
Fewer than 5 holdersEvery backtest needed 5+ holders; with fewer nothing was measured.
Side priced 30–50¢Full year, out of sample: 0.30–0.50 lost −4.8 % a trade (n 16,830, 95 % CI −6.6 to −3.1), worse than the plain consensus.

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

1 of 4 top traders (25%)Underdog side (market favors Over 50%)1 holds an outcome priced under 50%1 small position dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Over50%

Under50%

Smart Money Breakdown by Outcome

Under1 trader

Total Value$3.8K

Total Shares7,713

Combined PnL+$38.56

Over3 traders

Total Value$3.1K

Total Shares6,074

Combined PnL+$5.27

Under — 25%Over — 75%

Trader	Position	Invested	Value	PnL	Record
JS JsramCTR	Underavg 49¢	$3.8K	$3.8K	+$38.56	55% 133-110 (243)
MA Mastermoney	Overavg 51¢	$2.8K	$2.8K	+$0	47% 220-246 (466)
VeryLucky888	Overavg 50¢	$234.97	$239.67	+$4.7	58% 42597-30998 (73595)
CA Cannae<$100	Overavg 50¢	$57.03	$57.6	+$0.57	53% 16099-14267 (30366)

JsramCTR

Under

Invested

$3,779.28

Value

$3.8K

PnL

+$38.56

Record

55%

133-110 (243)

Mastermoney

Over

Invested

$2,800

Value

$2.8K

PnL

+$0

Record

47%

220-246 (466)

VeryLucky888

Over

Invested

$234.97

Value

$239.67

PnL

+$4.7

Record

58%

42597-30998 (73595)

Cannae<$100

Over

Invested

$57.03

Value

$57.6

PnL

+$0.57

Record

53%

16099-14267 (30366)

Research grade

NeutralUnder at 50%

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.
Fewer than 5 holdersEvery backtest needed 5+ holders; with fewer nothing was measured.
Side priced 30–50¢Full year, out of sample: 0.30–0.50 lost −4.8 % a trade (n 16,830, 95 % CI −6.6 to −3.1), worse than the plain consensus.

Smart Money Signal

Under

1 of 4 top traders (25%)Underdog side (market favors Over 50%)1 holds an outcome priced under 50%1 small position dimmed (<$100 invested)

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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 chance51.7%

49.5¢ price + 1.0¢ spread + 1.2¢ fee (Sports 5%). Win more often than this and the bet pays.

Expected Value—

Expected ROIenter your estimate

Max Profit

+$93.24

Max Loss

-$100.00

193.2

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.