8. Fresh wallets with big precise bets on quiet markets
Does a new wallet putting $5k into a market that smart money barely touches know something?
Definition
A fresh wallet is tracked, its age is known (its history before tracking is in the dataset, or its first fill is a day or more after its tracking start) and it is under 30 days old at the entry hour; big = position cost $5,000+; quiet = all other tracked money in the market under $50,000. Variants at signal: such a wallet on the consensus side, on the other side, a $1,000+ fresh wallet on the consensus side, no fresh wallet; strategy: buy the fresh wallet's side when it is the other side.
Baseline for every comparison: the plain consensus on the same markets (5+ tracked holders, 60 %+ on one side, price 0.05–0.95, first signal, held to resolution), 1 ¢ half-spread plus Polymarket's taker fee; $1 a trade.
Mean return per trade, with 95 % intervals
One marker per window: circle = A (curated wallets, Mar–Apr 2026, clean), square = B (all tracked wallets, Oct 2026, provisional, drift ranges dropped), diamond = pooled. Variants with fewer than 30 trades in a window are left out of the chart; the table below has every number.
Every variant
| Variant | Expected | Window A | Window B | Pooled A + B | IS / OOS (pooled) | vs its baseline (pooled) | Guard | Verdict |
|---|---|---|---|---|---|---|---|---|
| 8a >= 1 fresh wallet with >= $5k on the consensus side, quiet market entry filter, decided at the signal | better | −21.3 % [−41.4, −0.4] n = 86, hit 43 %, price 0.50 | no trades | −21.3 % [−40.8, −0.5] n = 86, hit 43 %, price 0.50 | IS −20.2 % (82) OOS — (0) | −17.1 [−36.8, +2.7] points vs the dropped trades, p = 0.9525 | no | negative |
| 8b >= 1 fresh wallet with >= $5k on the other side, quiet market entry filter, decided at the signal | worse | n = 7 (under 30) | no trades | n = 7 (under 30) | — | — | — | untestable here |
| 8c >= 1 fresh wallet with >= $1k on the consensus side (looser) entry filter, decided at the signal | better | −21.0 % [−37.4, −4.4] n = 136, hit 43 %, price 0.51 | n = 2 (under 30) | −20.7 % [−36.6, −4.7] n = 138, hit 43 %, price 0.51 | IS −19.0 % (131) OOS −100.0 % (1) | −16.7 [−32.3, +0.9] points vs the dropped trades, p = 0.9715 | no | negative |
| 8d no fresh wallet in the market (control) entry filter, decided at the signal | control | −3.0 % [−6.7, +0.7] n = 2,747, hit 65 %, price 0.63 | −4.9 % [−7.6, −2.4] n = 3,744, hit 65 %, price 0.64 | −4.1 % [−6.3, −2.0] n = 6,491, hit 65 %, price 0.64 | IS −1.9 % (3,278) OOS −6.0 % (2,732) | +5.3 [−6.0, +15.4] points vs the dropped trades, p = 0.1873 | no | nothing |
| 8e buy the fresh big wallet's side when it is the other side strategy, compared with base-hold | unknown | n = 14 (under 30) | n = 1 (under 30) | n = 15 (under 30) | — | — | — | untestable here |
What this data can and cannot show
Can: Whether the insiders pattern shows up among tracked wallets new to the dataset.
Cannot: The insiders page's actual population: untracked wallets are not in the data at all. In window B almost every leaderboard wallet's first fill is its tracking start (Oct 2 2026), so its age is unknown and it is never fresh; the signal is testable on curated wallets (window A) and on the one-year set.
Caveats that apply to every signal
- Only tracked wallets' fills exist, from when the site started tracking them; the replay is closer to the chain than to what the site displayed (no Polymarket position overrides, merges missing May–Oct 2026).
- Window B's fill times run early in parts of October 2026; the affected ranges are dropped and the rest is not proven clean. Its numbers are provisional until the repaired export is in.
- Prices are the last tracked fill, not the order book (median error 0.5 ¢, p90 up to 16 ¢ on fast markets); entries happen on the hour (5-minute steps in play).
- The windows are 7 and 3 weeks long; effects of a few points cannot pass a guard over 40 variants there. A failed guard is not evidence of no effect — it is the absence of evidence.
- Nothing here is trading advice. Past replays, even clean ones, do not pay future trades.