Will OpenAI’s market cap be less than $500B at market close on IPO day by December 31, 2027?

3 of 7 top Polymarket traders hold No (43%) · No at 98¢ · $241 held · ends Jan 1, 2028

Yes2¢No98¢Ends Sat, Jan 1, 2028View on Polymarket

SIGNAL

⚖️

Neutral

Consensus Traders

No 43%

Total Value

$241.29

Combined PnL

-$10.73

Smart Money Entry

98.2¢ → 97.9¢

+0% since entry · 3 traders

Research grade

NeutralNo at 98%

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 %).

Side priced over 95¢Full year, out of sample: 0.90–0.95 −0.2 % a trade (n 12,989, 95 % CI −0.6 to +0.3); above 95¢ little is left to win and the tests stop at 0.95.
Consensus under 60 %Every backtest started at 60 %+ of the holders; below that 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

3 of 7 top traders (43%)4 hold an outcome priced under 50%6 small positions dimmed (<$100 invested)

Market Activity

Loading chart data…

Outcome Probabilities

Yes2%

No98%

Smart Money Breakdown by Outcome

No3 traders

Total Value$235.27

Total Shares241

Combined PnL-$0.89

Yes4 traders

Total Value$6.02

Total Shares274

Combined PnL-$9.83

No — 43%Yes — 57%

Signal Intelligence

Momentum

Fading

-17 pts consensus

Breadth

3 traders

Top 2 hold 96%

Freshness

Late

61h old

Flip Quality

Clean

1 consensus flip

Breadth vs concentrationCrowded

43% of non-arb traders are on No. Concentration is driven by the top two positions owning 96% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians

The hand-picked list (2 on Yes) and the top 1000 (5 on No) disagree here.

whaleYes 100% · 1

Diverging

sharpNo 100% · 1

Aligned

ctrYes 67% · 3

Diverging

Hand-pickedYes 100% · 2

Diverging

Top 1000No 60% · 5

Aligned

Trader	Position	Invested	Value	PnL	Record
PL plainfolder	Noavg 97.8¢	$127.08	$127.14	+$0.06	31% 4455-9732 (14187)
MI mildwindow27<$100	Noavg 98.6¢	$98.61	$97.8	-$0.81	43% 8735-11393 (20128)
EL Elias.Thornwell<$100	Noavg 99.1¢	$10.47	$10.33	-$0.14	77% 12683-3869 (16552)
CR cry.eth2CTR<$100	Yesavg 8.3¢	$10.08	$2.55	-$7.18	39% 10143-15757 (25900)
DI Dimpled-FoalCTR<$100	Yesavg 5.8¢	$5.81	$2.2	-$3.4	52% 251-230 (481)
DEGENKHANCTR<$100	Yesavg 0.4¢	$0.23	$1.22	+$1	67% 1171-589 (1760)
0X 0x8f6970acd7c9466fc1d09a7c17071705c8e52923-1792437064758CTR<$100	Yesavg 14.3¢	$0.3	$0.04	-$0.25	51% 152-146 (298)

plainfolder

Invested

$127.08

Value

$127.14

PnL

+$0.06

Record

31%

4455-9732 (14187)

mildwindow27<$100

Invested

$98.61

Value

$97.8

PnL

-$0.81

Record

43%

8735-11393 (20128)

Elias.Thornwell<$100

Invested

$10.47

Value

$10.33

PnL

-$0.14

Record

77%

12683-3869 (16552)

cry.eth2CTR<$100

Yes

Invested

$10.08

Value

$2.55

PnL

-$7.18

Record

39%

10143-15757 (25900)

Dimpled-FoalCTR<$100

Yes

Invested

$5.81

Value

$2.2

PnL

-$3.4

Record

52%

251-230 (481)

DEGENKHANCTR<$100

Yes

Invested

$0.23

Value

$1.22

PnL

+$1

Record

67%

1171-589 (1760)

0x8f6970acd7c9466fc1d09a7c17071705c8e52923-1792437064758CTR<$100

Yes

Invested

$0.3

Value

$0.04

PnL

-$0.25

Record

51%

152-146 (298)

Research grade

NeutralNo at 98%

Side priced over 95¢Full year, out of sample: 0.90–0.95 −0.2 % a trade (n 12,989, 95 % CI −0.6 to +0.3); above 95¢ little is left to win and the tests stop at 0.95.
Consensus under 60 %Every backtest started at 60 %+ of the holders; below that nothing was measured.

Smart Money Signal

3 of 7 top traders (43%)4 hold an outcome priced under 50%6 small positions dimmed (<$100 invested)

Signal Intelligence

Momentum

Fading

-17 pts consensus

Breadth

3 traders

Top 2 hold 96%

Freshness

Late

61h old

Flip Quality

Clean

1 consensus flip

Breadth vs concentrationCrowded

43% of non-arb traders are on No. Concentration is driven by the top two positions owning 96% of that side's value.

Cohort consensusHand-picked vs top 1000 · whales, sharps, snipers, contrarians

The hand-picked list (2 on Yes) and the top 1000 (5 on No) disagree here.

whaleYes 100% · 1

Diverging

sharpNo 100% · 1

Aligned

ctrYes 67% · 3

Diverging

Hand-pickedYes 100% · 2

Diverging

Top 1000No 60% · 5

Aligned

Chat

EV Calculator

Your estimated chance that No wins (%)

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

Stake (USDC)

Break-even chance98.9%

97.9¢ price + 1.0¢ spread + 0.0¢ fee (Tech 4%). Win more often than this and the bet pays.

Expected Value—

Expected ROIenter your estimate

Max Profit

+$1.07

Max Loss

-$100.00

101.1

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.