BlackRock Files for Bitcoin Fund Using Options and Fixed Income

BlackRock has filed with U.S. regulators for a Bitcoin-linked fund that would use options contracts and fixed-income assets to track Bitcoin exposure. The proposed structure would not hold Bitcoin directly, setting it apart from a standard spot product and marking another expansion of BlackRock’s digital asset product lineup. For related coverage, see BlackRock Bitcoin ETF Cuts In-Kind Transfer Minimum to $1M.

What the Proposed Fund Would and Would Not Hold

The filing describes a fund built around two components: options linked to Bitcoin and fixed-income instruments. Options can deliver returns tied to an underlying asset’s price movements without requiring the fund to take direct custody of that asset. Fixed-income holdings would sit alongside those options as a separate portfolio layer. For related coverage, see Trump Media Group Files Truth Social Bitcoin ETF.

Direct Bitcoin ownership is explicitly excluded from the proposed structure. That means the fund would not hold spot Bitcoin the way BlackRock’s iShares Bitcoin Trust, which recently adjusted its in-kind transfer minimum, does. The fund’s Bitcoin exposure would flow entirely through derivatives. This approach follows a broader pattern for BlackRock, which has also filed a Bitcoin ETF incorporating downside protection features.

The filing does not specify the exact allocation between options and fixed income, the identity of options counterparties, fees, or a target launch date. None of those details can be confirmed from the current submission record.

How Options and Fixed Income Can Create Bitcoin-Linked Exposure

Options contracts give a fund the right, but not the obligation, to buy or sell an asset at a set price within a defined period. By holding options on Bitcoin or Bitcoin-linked instruments, a fund can participate in Bitcoin price moves without owning the underlying coins. The fixed-income portion typically serves as collateral or yield-generating ballast within the overall portfolio.

BlackRock has pursued structured-exposure approaches across its crypto filings. The firm has also filed for an Ethereum spot ETF, running a parallel track of both direct-custody and structured-exposure products. Other asset managers have similarly explored Bitcoin-linked fund structures as the regulatory landscape for crypto products continues to develop.

The exact exposure profile of the proposed fund, including whether it would deliver capped upside, buffered downside, or uncapped participation, is not established in the available filing data and should not be assumed.

Why the No-Direct-BTC Design Matters

A fund that holds spot Bitcoin must secure custody, manage on-chain transactions, and address operational risks that come with direct asset ownership. A derivatives-based structure delegates those responsibilities to counterparties and exchanges that issue the options, which changes the fund’s risk profile in ways the full prospectus would need to disclose.

The distinction also matters for investors comparing this product to spot alternatives. Coinbase custody now covers more than 80% of U.S. Bitcoin ETF assets, a concentration that a derivatives-based fund would bypass entirely by not holding spot BTC at all.

Key details to watch as this filing progresses: whether the SEC requests amendments, what the final options strategy and fixed-income allocation will be, what fees and risk disclosures accompany a prospectus, and when or whether the fund receives approval to launch. A regulatory filing is a proposal, not a product.

Additional source references: source document 1, source document 2.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.