A useful global register compares instruments before ranking them. The original design’s Top 21 is a coverage ambition, not evidence that twenty-one current rows have been independently reconciled.
The notebook / 01
Start with the instrument
Record the legal product name, issuer, identifier, domicile, listing currency, structure, fees and underlying exposure. One product may trade on several exchanges. Counting every listing as a separate pool can double-count the same assets.
An issuer’s assets under management, net asset value and units of bitcoin answer different questions. Preserve their distinct dates instead of putting them in a single unlabeled ranking.
iShares Bitcoin Trust ETF: holdings and product disclosures ↗CoinShares Physical Bitcoin: product materials ↗
The notebook / 02
Build an honest comparison
The daily issue contains a dated IBIT holdings record when its freshness gates pass. CoinShares is currently a product-reference source. These do not constitute a complete global ranking; the remaining rows need issuer-level reconciliation.
