Large Bitcoin holders are increasingly requesting conversions of coins held outside exchange-traded funds into shares of BlackRock’s iShares Bitcoin Trust (IBIT), according to Robbie Mitchnick, the firm’s head of digital assets. Speaking to Barron’s on November 9, 2026, Mitchnick described demand for the transfers as the strongest yet, with security and peace of mind the leading motives. The development is not equivalent to a surge in newly purchased Bitcoin.

Original report: Bitcoin Magazine’s November 9 X post. The external post is linked directly because WordPress strips the supported X embed scripts and frames.

An in-kind swap changes ownership structure, not Bitcoin supply

Eligible holders arrange a transfer of existing Bitcoin through intermediaries that facilitate creation of new fund shares. The holder receives IBIT exposure in a brokerage account, while the underlying coins move to the trust’s custody structure. The Securities and Exchange Commission approved in-kind creations and redemptions in July 2025; direct investors generally need approved market intermediaries rather than creating ETF shares themselves.

An investor exchanging 100 existing BTC for economically equivalent fund shares has not caused the ETF to purchase 100 additional BTC on an exchange. Fund share creation may rise without an equal increase in spot-market buying pressure. Gross conversions must therefore be kept separate from net fund flows, a distinction especially relevant after BitcoinVersus.Tech documented $1.28 billion in U.S. spot Bitcoin ETF withdrawals during the week ending November 6.

BlackRock’s own share count shows an opposing trend

BlackRock listed 1,439,480,000 IBIT shares outstanding on October 30 and 1,415,720,000 on November 6. The difference is 23,760,000 fewer shares, or 1.65%, calculated as (1,415,720,000 − 1,439,480,000) ÷ 1,439,480,000 × 100. Fund net assets also declined from approximately $62.30 billion to $60.70 billion, but asset-value changes reflect Bitcoin prices as well as creations and redemptions; the $1.60 billion gap is not a pure capital-flow statistic.

Earlier third-quarter reporting on BlackRock digital-asset products measured a different period and metric. Rising demand for one transaction method and falling aggregate IBIT shares can coexist, because fund investors are simultaneously creating, redeeming and trading exposure.

Convenience reduces some risks while introducing others

BlackRock’s own investor education material explains that IBIT investors own fund shares rather than Bitcoin directly; Coinbase provides custody for the underlying assets. Customers no longer have to secure seed phrases or maintain their own signing devices, but they surrender direct control over their coins. ETF shares carry brokerage, trust, custodian and market-access dependencies, along with a stated 0.25% annual sponsor fee.

Self-custody can also employ offline devices, physical backups and multisignature controls, so comparisons with unsafe hot wallets cannot establish that every independently managed setup is inferior. BitcoinVersus.Tech previously documented Trezor’s reseller security changes and explained hardware security modules and key protection. Concentrating custody with professional providers shifts the risk model; it does not eliminate operational or counterparty risks.

Official issuer context: iShares by BlackRock’s October 2025 IBIT post on X. The archived post is not reporting from the November 2026 interview.

Conversion totals need reconciliation

Barron’s reported roughly $3.6 billion in conversions observed by BlackRock, potentially excluding transactions handled elsewhere. An August 2026 Bloomberg-based interview report, however, attributed more than $5 billion in facilitated conversions to Mitchnick. Different observation scopes may explain the discrepancy, but neither publication supplies a reconciled time series. The totals should not be presented as a confirmed November increase over August.

Minimum transaction thresholds have reportedly declined from tens of millions of dollars to around $1 million–$2 million through participating intermediaries. Tax consequences depend on the holder and transaction; an in-kind route is not a universal exemption. The defensible conclusion is narrower than a headline about exploding ETF buying: some wealthy Bitcoin owners increasingly favor delegated custody, while IBIT’s net outstanding shares fell over the cited week.

Sources and verification

Primary documentation: iShares IBIT fund statistics (October 30 and November 6 snapshots), SEC in-kind creation approval, and iShares custody explanation. Interview reporting: Barron’s and Bitcoin Magazine. Calculations use fund-published shares rather than independently reconstructed wallet transfers.

BitcoinVersus.Tech Editor’s Note — November 10, 2026: Record demand refers to reported investor interest in in-kind conversions, not a verified record in net ETF inflows. Barron’s $3.6 billion and the earlier reported $5 billion-plus figures remain unreconciled. The featured cover is conceptual editorial artwork, not a photograph of a BlackRock vault or real IBIT certificate. The chart is an original calculation from BlackRock’s dated fund statistics; social posts are credited to their respective publishers. We volunteer daily to ensure the information on our platform is Verifiably True.

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