Data Coverage

Snapshot summary

Qualifying underlyings

117

Qualifying products

134

Earliest underlying history

1962-01-02

Latest underlying history

2026-07-10

How the data is built

Every reconstructed series is split-normalized OHLCV pricing sourced from Yahoo Finance. Prices are adjusted for stock splits only; dividends and capital gains are not folded into the close.

Corporate action events (dividends, splits, and capital gains) are recorded as separate events alongside price bars, not re-applied on top of the split-normalized close.

“Coverage” is the calendar span of listed history for the leveraged product itself. “Underlying history” is the span available for the proxy security used to reconstruct performance before the product’s listing date.

Selection and limitations

The supported universe is evidence-backed but intentionally not a claim of complete market coverage. Publication requires at least 100 qualifying ordinary underlyings. Each must meet the documented history and liquidity rules and have an evidenced relationship to an eligible leveraged product.

Yahoo Finance is used only by the publisher that builds validated, versioned snapshots. The web runtime reads the resulting immutable snapshot from R2 and does not fetch Yahoo data directly.

Snapshot metadata records source, retrieval, coverage, quality, relationship, and version information. The summary above exposes only the current snapshot boundary; it does not expose internal object locations or the full catalog.

Data is daily and may be delayed. It is not real-time, and this page does not promise an automatic refresh cadence or freshness guarantee.