When a whale dumps a favorite
A five-figure SELL of a 70–97¢ favorite is a strange trade — you're forfeiting near-certain profit unless you know something. Over $16.7M of resolved prints, the dumped favorites failed noticeably more than their price implied.
The hypothesisWhale BUYS are mostly noise — but a whale SELLING a heavy favorite at 70–97¢ is informative, because dumping a near-certain winner forfeits guaranteed money unless the seller doubts the certainty. When it happens, buy the opposite side cheap.
The test
The mine came first: every resolved large SELL print, with sell-side settlement semantics carefully verified against the ledger (a subtle trap — a SELL "wins" when the sold outcome loses). Favorites dumped in the 70–97¢ band subsequently failed at 16.7% (non-sports) and 18.3% (sports) against price-implied rates of 12.6–14.6% — a persistent gap on $16.7M of prints. But the monthly cut showed the sports version of the signal died mid-season, so the live probe runs the two lanes separately and never pools them. Live rules: qualifying dumps trigger a paper-buy of the opposite token at its live ask, gated on price, spread, and a maximum premium over what the dump itself implies, settled net of fees.
The result
Accruing. The historical gap translates to roughly +60–80% gross ROI on the opposite-side tickets in the recent non-sports cohort — if the live asks allow entries anywhere near the implied prices, which is precisely what the probe exists to find out. Signals arrive at a few per day; the 30-settlement gate is weeks away.
Conclusion
Open. This is the most information-theoretically clean whale signal we've found — it keys on a trade that is costly to make without information, unlike buying, which anyone does for any reason. It also carries a known failure mode the lanes are built around: the same signal measurably worked in sports for months and then stopped, so a positive non-sports verdict will be held to the regime-decay standard that killed its sibling.