Coin Metrics revises 19 months of ETF wallet data but by how much?

Coin Metrics corrected greater than 19 months of Bitcoin ETF-related on-chain data, leaving customers of its identified-wallet collection to reassess any evaluation constructed on the affected historical past.

The Sept. 22 status notice says the correction covers Bitcoin data from Feb. 7, 2025 by Sept. 17, 2026. Coin Metrics listed 35 affected each day collection and 25 hourly collection, together with ETF deposits, withdrawals, switch counts and transactions. The each day checklist additionally included net-flow and provide measures.

These are provider-derived observations of exercise involving blockchain addresses Coin Metrics identifies as ETF-owned, moderately than official ETF share-creation, redemption or fund-accounting information.

The discover doesn’t state what brought on the recalculation. Moreover, it provides no before-and-after values, combination distinction or proportion change; doesn’t say whether or not the revisions typically raised or lowered the figures; and doesn’t determine the biggest adjustment or any affected analysis.

What the correction can change

Coin Metrics’ deposit methodology defines an ETF deposit as property despatched throughout an interval to an handle the corporate identifies as ETF-owned. Dollar-denominated deposit flows are calculated from native-unit flows utilizing its PriceUSD metric.

Its withdrawal methodology counts property leaving the management of recognized ETF addresses. For Bitcoin withdrawals, Coin Metrics excludes the impact of change outputs, so cash returned to the identical fund cluster usually are not counted as a separate influx.

Coverage is one other constraint. Coin Metrics says its ETF transaction-count metric contains solely ETFs and addresses it has recognized, making that particular metric a minimal potential worth. The each day correction checklist additionally reaches its ETF supply series.

Wallet actions can’t be handled as a one-to-one proxy for authorized-participant creations or redemptions. Coin Metrics measures attributed blockchain exercise, whereas the regulated fund course of issues orders for ETF shares, together with the in-kind mechanism permitted below the SEC’s July 2025 approval. The Sept. 22 discover describes a correction to Coin Metrics Network Data, not a revision to issuer information.

The sensible affect is due to this fact restricted to work that used the affected Coin Metrics collection. Anyone who saved these each day or hourly values, or used them in fashions, charts or analysis protecting the corrected interval, could have to backfill the historical past and rerun that work. The discover doesn’t present that unrelated ETF evaluation modified.

Until Coin Metrics publishes deltas or a fuller clarification, the accountable conclusion stays slim: the supplier modified a broad slice of its ETF-wallet image, but has not proven the general public how a lot that image moved.

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