Definitions
In plain terms
A minus-one-times daily index aims to rise about 1% when the underlying falls 1% for that day before costs.
Technical
The methodology specifies negative exposure, underlying variant, reset, financing and collateral returns, fees, compounding, floors, holidays, and disruption controls.
Scope
It is not a constant inverse of the underlying level or cumulative return over long horizons.
Examples
- A governed methodology records inverse index with its source, cutoff, units, parameters, and effective version.
Common misconceptions
- Inverse Index does not have one universal implementation without the declared methodology, data basis, and constraints.
Concept relationships
Prerequisites
Contrasts with
Where this concept is used
Evidence and governance
- S&P Dow Jones Indices Index Mathematics Methodology S&P Dow Jones Indices · first party methodology
Supports: preferred label, short definition, technical definition
Limits: Authoritative for the provider's indices; conventions are not universal defaults for every index or security-level return series.
- Fintech Builder Glossary Definition Contract The Fintech Builder · internal governed contract
Supports: variant distinction
Limits: Defines governed platform behavior rather than claiming these policies are universally prescribed by external McClellan methodology.
- Reviewed by
- fintech-builder-batch-004
- Last reviewed
- 2026-07-27
- Next review
- 2027-07-27
- Record status
- evidence reviewed
This record is evidence-reviewed and readable, but not yet promoted to published — it is served noindex,follow and excluded from the sitemap.