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 faster than expected, and positive in both lanes so far: the non-sports lane has 24 settled would-enters (5 wins, 19 losses) at +124.6% ROI-at-ask — a 21% win rate is enough because the opposite-side tickets are bought at 20–40¢ — and the sports lane, expected to be dead, has 60 settled (15 wins, 45 losses) at +35.8%. The non-sports gate (30) is a few days out. Payoff skew this steep means the verdict will hinge on whether the win rate holds near 20% or sags to the ~15% that would flatten the curve; a 24-sample cannot settle that.
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.