# Index Methodology Rulebook

Each index follows a strict, automated selection and weighting framework that ensures consistency, scalability, and integrity over time. This methodology draws on institutional practices such as those used by S\&P, CoinDesk 20, and CoinMarketCap.

Key components include asset eligibility filters, weighting logic, rebalancing cadence, and diversification controls. These principles are built into OLTA’s smart contracts to eliminate discretionary intervention and ensure objective fund construction.

**Continue reading:**

* [Methodology Overview](/oltafinance/index-methodology-rulebook/methodology-overview.md)
* [Asset Selection Filters](/oltafinance/index-methodology-rulebook/asset-selection-filters.md)
* [Index Maintenance & Weighting](/oltafinance/index-methodology-rulebook/index-maintenance-and-weighting.md)
* [Reference Methodologies](/oltafinance/index-methodology-rulebook/references.md)

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