Smart money holds the underdog side

Most tracked traders hold Under, while the market favors Over (53%). 4 of 6 traders hold an outcome priced under 50%.

Grizzlies vs. Trail Blazers: O/U 233.5

4 of 6 top Polymarket traders hold Under (67%) · Under at 47¢ · $4K held · ends Oct 30

Over53¢Under47¢Ends Fri, Oct 30, 2026View on Polymarket

SIGNAL

⚠️

Avoid

Under

Consensus Traders

Under 67%

1 arb excluded

Total Value

$3.6K

Combined PnL

$15.98

Smart Money Entry

48.6¢ → 47¢

-3% since entry · 4 traders

Research grade

AvoidUnder at 47%

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

BasketballFull year, out of sample: basketball lost −4.8 % a trade (n 1,747, 95 % CI −9.2 to +0.3); Oct 22 backtest: −12.0 % and −9.2 % in its two windows.
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.
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

4 of 6 top traders (67%)Underdog side (market favors Over 53%)1 arbitrage trader dimmed4 hold an outcome priced under 50%2 small positions dimmed (<$100 invested)

Market Activity

Outcome Probabilities

Over53%

Under47%

Smart Money Breakdown by Outcome

Under4 traders

Total Value$2.8K

Total Shares4,233

Combined PnL+$20.86

Over2 traders

Total Value$472.44

Total Shares903

Combined PnL-$4.87

Under — 67%Over — 33%

Trader	Position	Invested	Value	PnL	Record
HO HomeRunHazardCTR	Underavg 49¢	$2.2K	$2.2K	+$4.8	54% 16927-14186 (31113)
0X 0xAbF543512f33E2D754ada028a689610139Cccfeb-1760974401494	Overavg 53¢	$441.1	$436.94	-$4.16	54% 1257-1064 (2321)
BU BullishBarbARB<$100	Overavg 53¢	$358.72	$358.1	-$0.62	42% 3463-4692 (8155)
└ Over leg	Overavg 53¢	$221.01	$218.93	-$2.08
└ Under leg	Underavg 47¢	$137.71	$139.17	+$1.46
0X 0x5b624e3E0426F7AA2Ca57F7451fbcEa4b125D87f-1769796221989CTR	Underavg 48¢	$309.99	$322.9	+$12.92	53% 5532-4882 (10414)
TA takeormakeCTR	Underavg 47¢	$257.46	$260.2	+$2.74	54% 3863-3352 (7215)
FO Forecastication2<$100	Overavg 51¢	$36.21	$35.5	-$0.71	50% 6859-6862 (13721)
0xheavy888CTR<$100	Underavg 48¢	$9.6	$10	+$0.4	56% 6955-5574 (12529)

HomeRunHazardCTR

Under

Invested

$2,154.1

Value

$2.2K

PnL

+$4.8

Record

54%

16927-14186 (31113)

0xAbF543512f33E2D754ada028a689610139Cccfeb-1760974401494

Over

Invested

$441.1

Value

$436.94

PnL

-$4.16

Record

54%

1257-1064 (2321)

BullishBarbARB<$100

Over

Invested

$358.72

Value

$358.1

PnL

-$0.62

Record

42%

3463-4692 (8155)

Both legs:

Over$221.0153¢-$2.08

Under$137.7147¢+$1.46

0x5b624e3E0426F7AA2Ca57F7451fbcEa4b125D87f-1769796221989CTR

Under

Invested

$309.99

Value

$322.9

PnL

+$12.92

Record

53%

5532-4882 (10414)

takeormakeCTR

Under

Invested

$257.46

Value

$260.2

PnL

+$2.74

Record

54%

3863-3352 (7215)

Forecastication2<$100

Over

Invested

$36.21

Value

$35.5

PnL

-$0.71

Record

50%

6859-6862 (13721)

0xheavy888CTR<$100

Under

Invested

$9.6

Value

$10

PnL

+$0.4

Record

56%

6955-5574 (12529)

Research grade

AvoidUnder at 47%

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

BasketballFull year, out of sample: basketball lost −4.8 % a trade (n 1,747, 95 % CI −9.2 to +0.3); Oct 22 backtest: −12.0 % and −9.2 % in its two windows.
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.
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

4 of 6 top traders (67%)Underdog side (market favors Over 53%)1 arbitrage trader dimmed4 hold an outcome priced under 50%2 small positions 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 chance49.2%

47.0¢ 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

+$103.05

Max Loss

-$100.00

203.1

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.