In negRisk multi-candidate markets (where an adapter guarantees the set converts cleanly at resolution), the YES legs sometimes add up to less than $1.00, leaving a guaranteed residual, or a hopeless long-shot trades above the floor the adapter will pay it. Sweep the underpriced basket or short the over-floor tail, relying on the adapter's no-loss conversion guarantee. The edge is the structural floor/ceiling the adapter enforces, which thin tail legs violate.
Markets on Polymarket where multi-outcome residual long-shot sweep is the natural play:
