OLTA Index Methodology Changelog

This file tracks weighting, constituent, and rebalance cadence adjustments to the live index catalog. Detailed weight tables and expected-impact estimates are maintained in a private appendix issued to institutional counterparties and grant reviewers under NDA on request.

2026-05-24 · 10-index retirement

Following the cross-family research synthesis, ten indices have been retired from the live catalog. Each carries a retirement note with the specific reason and, where applicable, a successor index.

Failed thesis

• OL2G8 · L2 token thesis (no successor)
• OZK8 · ZK narrative collapse
• OSMC4 · volatility-to-Sharpe untradeable
• ODS5 · underlying architecture not available in 2026 deployment window
• OPIZZA3 · marketing artifact

Duplicate exposure

• OBC8 · successor OCI10
• OML4 · successor OMM6
• OYI8 · no direct successor
• OIR6 · successor OTT4
• ODATA8 · successor OOR6

Retired indices stay visible in the /indices catalog under the "Retired" filter and at their /index/[ticker] page with the retirement note. They are excluded from default filters, TopPerformers, Lite buckets, and Earn suggestions.

2026-05-24 · Research-driven weighting refresh

Six indices updated based on the under-study research deep-dives. Each change is unambiguous, sized small, and ships ahead of the broader repositioning decisions (which require governance signoff). Specific weight deltas, rationale tables, and expected-Sharpe-lift estimates are documented in the private engineering log.

OFOMO6 · rebalance schedule fix

Cadence aligned to mandate (momentum-driven basket moved from the default cadence to a short rebalance window matching the published description). Brings the live behaviour into alignment with the stated strategy intent.

OCI10 · constituent swap

Two mid-cap constituents that dragged the basket through the most recent drawdown were replaced with two names that offer institutional traction (RWA-narrative L1) and non-Ethereum stablecoin float exposure respectively. Net constituent count unchanged.

ODER8 · top constituent added

The current category leader in perpetual derivatives volume was absent from the basket because the prior universe predated its listing. The constituent was added at a meaningful weight, with the existing sleeve diluted pro-rata to preserve relative weighting. A scheduled cadence would not have rotated into the new name on its own; this is a manual catch-up.

OOR6 · concentration to category leader

The basket was concentrated to the constituents with material protocol revenue and observable market traction, with the long-tail oracle names removed. Weighting framework updated to reflect the revised concentration profile.

OCI6 · simplified to top 5 by market cap

The basket was reweighted toward BTC at a higher cap and one underperforming constituent removed. Description updated to reflect the five-asset structure. The 6-asset structure was mechanically constrained; the 5-asset structure is more honest about what the basket is.

ODR4 · stablecoin sleeve added

A stablecoin sleeve was added for the reserve / cash leg, with the existing crypto constituents diluted pro-rata. The "Digital Reserve" mandate was undermined by being pure-crypto; the stablecoin sleeve dampens drawdown without forcing the basket to give up upside participation. Symbol allowlist work for the new stablecoin is tracked separately; NAV computation handles missing prices gracefully via the coverage path in the price pipeline.

Backtest cache invalidation

The static cache is now stale for the six tickers above. Display Sharpe will continue rendering the prior numbers until the backfill and analysis scripts re-run. This is expected and acceptable for the testnet preview window. The methodology changes ship today; the metrics update on the next refresh.

Future entries

Subsequent refreshes append here with qualitative rationale and visibility impact. Detailed weight deltas remain in the private engineering log.