Durable scarcity selection. Valuation stays separate.
The sPEG Index identifies listed companies with evidence-supported capacity to retain economic benefits from constrained alternatives over a three-to-five-year horizon. Every decision exposes its mechanism, five-part ordinal score, evidence confidence, counterevidence, and next falsifier.
Meets every admission gate
A named gate remains unmet
What the number means
SDS is the integer sum of Constraint, Substitution resistance, Economic capture, Persistence, and Cost of defense only when all five are known. It is ordinal: 16 is not twice 8, and 15 is not 75% confidence. Admission requires C/S/E/P of at least 3, D of at least 2, adequate company materiality, at least Moderate decisive confidence, a complete evidence packet, a current review, and no unresolved material eligibility event.