
Will the lowest St. Louis river level be 1.00 to 2.99 ft by November 30?
3 of 10 top Polymarket traders hold Yes (30%) · Yes at 86¢ · $2K held · ends Dec 2
⚖️
Neutral
Yes
10
Yes 30%
2 arb excluded
$2.2K
$134.41
50.3¢ → 86.2¢
+71% since entry · 3 traders
Research grade
NeutralYes at 86%
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 %).
- 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 10 top traders (30%)2 arbitrage traders dimmed7 hold an outcome priced under 50%8 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Fading
-8 pts consensus
Breadth
2 traders
Top 2 hold 100%
Freshness
Late
726h old
Flip Quality
Choppy
4 consensus flips
22% of non-arb traders are on Yes. Concentration is driven by the top two positions owning 100% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
![]() Istaroth | Yesavg 55.4¢ | $877.48 | $767.87 | -$15.21 | 14% 461-2758 (3219) |
XT xtxpleasecallmeARB<$100 | Noavg 63.6¢ | $1.5K | $711.48 | -$120.35 | 35% 18159-34016 (52175) |
| └ Yes leg | Yesavg 27.8¢ | $168.68 | $483.1 | +$429.38 | |
| └ No leg | Noavg 63.6¢ | $708.04 | $228.38 | -$549.73 | |
0X 0x43cb4Ae1f4dDC9E671486C79c9F40A6fd98B84Df-1761656284271 | Yesavg 43.8¢ | $270.37 | $491.01 | +$220.64 | 27% 6849-18792 (25641) |
![]() 2B9SARB<$100 | Noavg 64.7¢ | $271.33 | $109.96 | -$134.97 | 18% 4284-20059 (24343) |
| └ No leg | Noavg 64.7¢ | $221.48 | $70.21 | -$161.6 | |
| └ Yes leg | Yesavg 25¢ | $12.51 | $39.75 | +$26.63 | |
CB Cb94C437EA5e6f088c6c0C143c592ab8EFBedCTR<$100 | Noavg 24.9¢ | $46.53 | $26.52 | -$9.31 | 53% 8228-7325 (15553) |
0X 0xa169f83d28ad1ce5a14cc1c49796b547ece21b73<$100 | Yesavg 57¢ | $12.02 | $15.9 | +$4.5 | 40% 285-429 (714) |
ME merodCTR<$100 | Noavg 77¢ | $44.66 | $11.89 | -$32.77 | 43% 3133-4188 (7321) |
KO korda77CTR<$100 | Noavg 77¢ | $40.04 | $10.66 | -$29.38 | 44% 6482-8172 (14654) |
![]() LucerysCTR<$100 | Noavg 13¢ | $4.8 | $7.54 | +$2.74 | 77% 12539-3686 (16225) |
GI GingerMcKennaCTR<$100 | Noavg 74¢ | $19.22 | $4.11 | -$4.99 | 38% 3073-4954 (8027) |
QW qwen300.fundCTR<$100 | Noavg 13.8¢ | $1.38 | $2.05 | +$0.67 | 59% 11839-8177 (20016) |
AN anothercoinCTR<$100 | Noavg 70.2¢ | $3.51 | $1.02 | -$2.48 | 50% 659-658 (1317) |
IstarothInvested
$877.48
Value
$767.87
PnL
-$15.21
Record
14%
461-2758 (3219)
Invested
$1,462.91
Value
$711.48
PnL
-$120.35
Record
35%
18159-34016 (52175)
Both legs:
Invested
$270.37
Value
$491.01
PnL
+$220.64
Record
27%
6849-18792 (25641)
2B9SARB<$100Invested
$271.33
Value
$109.96
PnL
-$134.97
Record
18%
4284-20059 (24343)
Both legs:
Invested
$46.53
Value
$26.52
PnL
-$9.31
Record
53%
8228-7325 (15553)
Invested
$12.02
Value
$15.9
PnL
+$4.5
Record
40%
285-429 (714)
Invested
$44.66
Value
$11.89
PnL
-$32.77
Record
43%
3133-4188 (7321)
Invested
$40.04
Value
$10.66
PnL
-$29.38
Record
44%
6482-8172 (14654)
LucerysCTR<$100Invested
$4.8
Value
$7.54
PnL
+$2.74
Record
77%
12539-3686 (16225)
Invested
$19.22
Value
$4.11
PnL
-$4.99
Record
38%
3073-4954 (8027)
Invested
$1.38
Value
$2.05
PnL
+$0.67
Record
59%
11839-8177 (20016)
Invested
$3.51
Value
$1.02
PnL
-$2.48
Record
50%
659-658 (1317)
Chat
EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
86.2¢ price + 1.0¢ spread + 0.6¢ fee (Other / General 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

Istaroth
Yes — $767.87
xtxpleasecallme
ARBArbitrage — excluded
0x43cb4Ae1f4dDC9E671486C79c9F40A6fd98B84Df-1761656284271
Yes — $491.01

2B9S
ARBArbitrage — excluded
Cb94C437EA5e6f088c6c0C143c592ab8EFBed
CTRNo — $26.52
0xa169f83d28ad1ce5a14cc1c49796b547ece21b73
Yes — $15.9
merod
CTRNo — $11.89
korda77
CTRNo — $10.66

Lucerys
CTRNo — $7.54
GingerMcKenna
CTRNo — $4.11