BlackRock registered a third bitcoin exchange-traded fund with the U.S. Securities and Exchange Commission on October 19, 2026. The iShares Bitcoin Managed Protection ETF, ticker PBIT, holds options rather than coins, and that choice defines the product. BlackRock’s existing spot fund, IBIT, holds the coin directly and tracks the CME CF Bitcoin Reference Rate.
How the protection is built
The Form 485APOS filing describes a fund that buys call options on Bitcoin Reference Assets in three overlapping tranches, sells higher-strike calls against them, and parks the rest of its capital in fixed-income securities. The tranches carry staggered monthly start dates, so one expires and a new one is added each month. The premium from the sold calls and the interest from the bond sleeve fund what the prospectus calls a level of downside protection.
The prospectus stops short of a defined buffer. It promises no principal protection and no fixed outcome. The width of the cushion depends on how much premium the sold calls collect and how much interest the bond sleeve earns, and both move with rates and volatility. The filing also gives the fund broad discretion to hold more or fewer tranches and options with varying expirations.
Where the cap comes from
The cap and the cushion come from the same call spread. The fund buys a call at one strike and sells a call at a higher strike. If the reference price closes above the higher strike at expiry, the gain stops at the distance between the two strikes, minus the net premium paid. Giving up the upside above the sold strike is the price of the hedge.
The filing says the fund generally expects to use Flexible Exchange Options, or FLEX Options, cleared through the Options Clearing Corporation. Clearing removes the bilateral default risk an investor would face building the same trade through a dealer.
What the fund actually holds
BlackRock names Erin Armstrong, Kyle McClements, and Richard Mejzak as portfolio managers. The preliminary prospectus leaves the management fee blank and lists other expenses at zero. The filing states that the fund does not invest directly in bitcoin or bitcoin exchange-traded products, and that investors may lose some or all of their money.
For an allocator who wants bitcoin exposure but cannot take a deep drawdown to a risk committee, PBIT packages a hedged long in a familiar wrapper. A trader can assemble the same call spread on IBIT and skip the management fee, but cleared FLEX options and the bond sleeve are the convenience the fund sells.
What happens next
The registration is preliminary. The filing points to roughly early January 2027, when its 75-day review window expires. Shares cannot be sold until the SEC declares the registration effective. The next concrete signal is the fee: once BlackRock fills in the blank management fee, the market can price the wrapper against doing the spread by hand.
Source: BlockchainReporter.