
Will Doris Matsui win the CA-07 House seat?
4 of 16 top Polymarket traders hold Yes (25%) · Yes at 77¢ · $5K held · ends Nov 4
⚖️
Neutral
Yes
16
Yes 25%
$5.2K
$137.67
64¢ → 77¢
+20% since entry · 3 traders
Research grade
NeutralYes at 77%
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
4 of 16 top traders (25%)12 hold an outcome priced under 50%10 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Cooling
-6 pts consensus
Breadth
4 traders
Top 2 hold 88%
Freshness
Late
743h old
Flip Quality
Choppy
4 consensus flips
44% of non-arb traders are on Yes. Concentration is driven by the top two positions owning 88% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
![]() seal7 | Yesavg 66.9¢ | $2.4K | $2.5K | +$112.44 | 49% 288-302 (590) |
![]() twinna | Yesavg 59.9¢ | $1.5K | $1.7K | +$128.2 | 50% 94-94 (188) |
![]() macrosteaks | Yes | $575.22 | $575.22 | +$0 | 54% 3256-2723 (5979) |
0X 0x66E7ce01C6831B8A2503D09eDD6167152Ee68BcD-1771870353938CTR | Noavg 31.5¢ | $121 | $95.97 | -$25.02 | 45% 2312-2836 (5148) |
VE VerilyWinninglyCTR | Noavg 33¢ | $100.32 | $74.49 | -$24.14 | 17% 221-1047 (1268) |
SP SpringlyFawlCTR | Noavg 33¢ | $100.32 | $56.71 | -$23.15 | 31% 2176-4867 (7043) |
GG GGLPL<$100 | Yesavg 70¢ | $44.72 | $44.72 | -$0.64 | 50% 713-716 (1429) |
E4 e46m3CTR<$100 | Noavg 33.3¢ | $51.81 | $38.95 | -$12.86 | 72% 11988-4776 (16764) |
LP lpgbCTR<$100 | Noavg 34¢ | $69.02 | $38.75 | -$17.31 | 25% 180-534 (714) |
AB ABC12345654321CTR<$100 | Noavg 31.7¢ | $69.32 | $11.42 | +$0.75 | 50% 1694-1678 (3372) |
0X 0x69f0C154a3412F2b3Fa7eB22c6d08E6B5B32FB27-1778811502354CTR<$100 | Noavg 26¢ | $2.88 | $2.77 | -$0.11 | 42% 938-1305 (2243) |
0X 0x1F85EB9C455c5BDEF5D96C2739076678c7157B02-1778811447702CTR<$100 | Noavg 26¢ | $2.88 | $2.77 | -$0.11 | 37% 633-1096 (1729) |
0X 0x1aBc2b469b5dED495d6C8B21Fc79dcb8d8f345E7-1778811281023CTR<$100 | Noavg 27.3¢ | $2.22 | $2.04 | -$0.18 | 38% 751-1204 (1955) |
0X 0x8B8b9c565C8dCA43cfb767F0F2C20B2B323d2512-1778811726293CTR<$100 | Noavg 26¢ | $2.11 | $2.03 | -$0.08 | 38% 680-1090 (1770) |
0X 0x9b129aD05Bc0a8df3C73DfCC66fE75252DaEC2D5-1778811687225CTR<$100 | Noavg 26¢ | $1.34 | $1.29 | -$0.05 | 45% 1527-1832 (3359) |
0X 0x4E72c22CD76f9973a48aedfd79FeEAaCC8B7FFb9-1778811541343CTR<$100 | Noavg 26¢ | $1.3 | $1.25 | -$0.05 | 47% 1566-1776 (3342) |
seal7Invested
$2,388.96
Value
$2.5K
PnL
+$112.44
Record
49%
288-302 (590)
twinnaInvested
$1,492.52
Value
$1.7K
PnL
+$128.2
Record
50%
94-94 (188)
macrosteaksInvested
$575.22
Value
$575.22
PnL
+$0
Record
54%
3256-2723 (5979)
Invested
$121
Value
$95.97
PnL
-$25.02
Record
45%
2312-2836 (5148)
Invested
$100.32
Value
$74.49
PnL
-$24.14
Record
17%
221-1047 (1268)
Invested
$100.32
Value
$56.71
PnL
-$23.15
Record
31%
2176-4867 (7043)
Invested
$44.72
Value
$44.72
PnL
-$0.64
Record
50%
713-716 (1429)
Invested
$51.81
Value
$38.95
PnL
-$12.86
Record
72%
11988-4776 (16764)
Invested
$69.02
Value
$38.75
PnL
-$17.31
Record
25%
180-534 (714)
Invested
$69.32
Value
$11.42
PnL
+$0.75
Record
50%
1694-1678 (3372)
Invested
$2.88
Value
$2.77
PnL
-$0.11
Record
42%
938-1305 (2243)
Invested
$2.88
Value
$2.77
PnL
-$0.11
Record
37%
633-1096 (1729)
Invested
$2.22
Value
$2.04
PnL
-$0.18
Record
38%
751-1204 (1955)
Invested
$2.11
Value
$2.03
PnL
-$0.08
Record
38%
680-1090 (1770)
Invested
$1.34
Value
$1.29
PnL
-$0.05
Record
45%
1527-1832 (3359)
Invested
$1.3
Value
$1.25
PnL
-$0.05
Record
47%
1566-1776 (3342)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
77.0¢ price + 1.0¢ spread + 0.9¢ 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

seal7
Yes — $2.5K

twinna
Yes — $1.7K

macrosteaks
Yes — $575.22
0x66E7ce01C6831B8A2503D09eDD6167152Ee68BcD-1771870353938
CTRNo — $95.97
VerilyWinningly
CTRNo — $74.49
SpringlyFawl
CTRNo — $56.71
GGLPL
Yes — $44.72
e46m3
CTRNo — $38.95
lpgb
CTRNo — $38.75
ABC12345654321
CTRNo — $11.42