Bitcoin Magazine

BlackRock Re-Underwrites Bitcoin, and the Portfolio Math Still Holds

Bitcoin’s roughly 50% decline from its October 2025 high has created a useful test for the institutional investment thesis. It is relatively easy to make the case for a new asset while prices are rising, correlations are favorable and capital is flowing into the market. The more revealing exercise comes after a major drawdown, when investors can revisit the original assumptions and determine which were structural and which were simply products of the preceding cycle.

That is effectively what BlackRock has done in its latest research, Re-Underwriting Bitcoin: Still a Portfolio Diversifier. Rather than treating the recent drawdown as evidence for or against Bitcoin in isolation, the firm returns to the question most relevant to an allocator: how has Bitcoin actually affected the risk and return characteristics of a diversified portfolio?

The results are more consequential than the headline return figures suggest. In BlackRock’s rolling 10-year analysis through May 29, 2026, a traditional 60/40 equity and fixed-income portfolio generated an annualized return of approximately 9.9% with annualized standard deviation of roughly 10.1%. Introducing a 1% Bitcoin allocation increased annualized return to approximately 10.9%, while volatility moved only modestly higher to roughly 10.3%. At a 2% allocation, annualized return reached approximately 11.8%, with standard deviation of about 10.6%.

Put differently, the 2% allocation added roughly 190 basis points of annualized return relative to the traditional portfolio while increasing annualized volatility by approximately 50 basis points. The portfolio’s Sharpe ratio improved from 0.81 to 0.96, while maximum drawdown changed from -20.3% to -20.9%. Those figures are hypothetical and backward-looking, but they illustrate why judging Bitcoin primarily by its standalone volatility can produce an incomplete assessment of its portfolio impact.

The more relevant question is how that volatility interacts with everything else an investor already owns. BlackRock continues to characterize Bitcoin as having risk and return drivers that are fundamentally different from traditional assets, rooted in its fixed supply, decentralized structure and independence from any sovereign issuer. Those characteristics do not prevent Bitcoin from trading alongside risk assets during periods of deleveraging, but BlackRock’s research suggests those correlations have historically been episodic rather than permanent.

That distinction helps explain the portfolio results. A modest allocation does not import Bitcoin’s standalone volatility into a portfolio on a one-for-one basis. What matters is the marginal contribution of that allocation to total portfolio risk relative to the return it has historically generated. In BlackRock’s analysis, that trade-off remained favorable at 1% and 2%, even after incorporating one of Bitcoin’s most significant recent drawdowns.

Why 1–2% keeps appearing in BlackRock’s work

This is not the first time BlackRock has arrived at this range. Its earlier portfolio research approached Bitcoin sizing through risk contribution, concluding that a 1–2% allocation could represent a reasonable range for investors willing and able to accept Bitcoin’s risk. At those weights, BlackRock found that Bitcoin could contribute a similar share of overall portfolio risk as an individual mega-cap technology holding in a conventional 60/40 portfolio. Beyond 2%, however, Bitcoin’s contribution to total portfolio risk begins to increase disproportionately.

The new analysis approaches the same question from the opposite direction. Rather than asking how much risk Bitcoin contributes, it examines what investors historically received for assuming that additional risk. The improvement in Sharpe ratio from 0.81 for the traditional portfolio to 0.90 with 1% Bitcoin and 0.96 with 2% Bitcoin suggests that the incremental return historically more than compensated for the additional portfolio-level volatility.

This does not establish 1% or 2% as an optimal allocation, and BlackRock does not present it that way. The appropriate exposure will depend on liquidity requirements, investment horizon, governance constraints and risk tolerance. What the analysis does provide is a more rigorous framework for the discussion. The allocation question can increasingly be evaluated in terms of marginal risk, correlation, drawdown and portfolio efficiency rather than through a binary debate over whether Bitcoin itself is too volatile to own.

BlackRock has also seen the demand firsthand

There is another dimension to BlackRock’s latest analysis that is difficult to separate from the firm’s experience in the market.

BlackRock launched the iShares Bitcoin Trust, IBIT, in January 2024. Less than a year later, it had accumulated more than $50 billion in assets, making it what BlackRock itself has described as the largest exchange-traded product launch in history. It reached that milestone roughly five times faster than the previous record holder.

Its significance has only grown since then. BlackRock now describes IBIT as the world’s largest and most traded Bitcoin ETP, and the fund became the firm’s highest-revenue ETF in 2025 despite competing within a global BlackRock lineup of more than 1,000 products.

The concentration within the U.S. spot Bitcoin ETF market is equally notable. According to current ETF holdings data tracked by Bitcoin For Corporations, U.S. spot Bitcoin ETFs collectively hold approximately 1.25 million BTC, representing nearly 6% of Bitcoin’s fixed 21 million supply. IBIT alone accounts for roughly 775,000 BTC, or more than 60% of the Bitcoin held across the U.S. spot ETF complex.

View the full Bitcoin ETF Dashboard.

That does not make BlackRock’s research independent of commercial context; IBIT is an important and increasingly valuable BlackRock product. That context should be understood rather than ignored. But it also means the firm’s reassessment is occurring alongside more than two years of observing how investors actually use Bitcoin exposure at scale.

The distinction is useful. The theoretical case for Bitcoin as a portfolio asset is increasingly being accompanied by observable allocation behavior. Investors have now had access to Bitcoin through familiar brokerage, advisory and institutional infrastructure across multiple market regimes, including periods of rapid appreciation and severe drawdowns. IBIT’s growth suggests that demand has persisted well beyond its initial launch window.

A drawdown is precisely when a thesis should be re-underwritten

The timing of BlackRock’s report may ultimately be more informative than the portfolio simulation itself.

Bitcoin is not being reassessed at an all-time high. BlackRock published the analysis after an approximately 50% drawdown from Bitcoin’s October 2025 peak, a period the firm associates with leveraged positioning being unwound, slowing ETP flows and weaker demand from companies accumulating Bitcoin. Its conclusion is that these forces represented a positioning correction rather than a fundamental change in Bitcoin’s investment case.

That is what re-underwriting is supposed to accomplish. An investment thesis should not survive because investors are attached to it; it should survive because its underlying assumptions continue to hold when conditions change.

For Bitcoin, those assumptions extend beyond historical returns. The asset remains scarce by design, globally liquid, independent of a sovereign issuer and structurally different from the liabilities that dominate traditional portfolios. BlackRock argues that concerns around fiscal sustainability, monetary stability and geopolitical risk may therefore become increasingly relevant to Bitcoin’s long-term adoption.

The portfolio evidence does not prove what Bitcoin will return over the next decade, nor does IBIT’s success establish what an appropriate allocation should be. What the two developments show together is that the institutional conversation has advanced considerably. Bitcoin is no longer being evaluated solely as an unconventional asset that institutions may or may not choose to own. It is increasingly being evaluated through the same disciplines applied elsewhere in capital allocation: sizing, risk contribution, correlation, liquidity, drawdown and expected return.

What this means for corporate leaders

For CFOs, boards and corporate operators, that evolution may be the most important takeaway from BlackRock’s work.

The relevant decision is not whether Bitcoin is volatile; that is already known. Nor does a corporate allocation need to resemble the concentrated Bitcoin strategies pursued by companies that have explicitly built their capital structures around the asset. Between zero exposure and a Bitcoin-centric balance sheet sits a much broader spectrum of possible allocations.

BlackRock’s research provides a useful framework for thinking about that spectrum. A relatively small allocation was sufficient to materially alter the historical return characteristics of a conventional portfolio without producing a comparable increase in portfolio-level risk. At 2%, approximately 190 basis points of additional annualized return came with roughly 50 basis points of additional annualized volatility in the period studied. The allocation was small; its effect was not.

For corporate leaders, the implication is less about adopting BlackRock’s specific allocation range than adopting the discipline behind the analysis. Bitcoin can be underwritten like any other strategic allocation: define its purpose, determine an acceptable risk contribution, establish liquidity and governance requirements, size the position accordingly and periodically revisit the assumptions.

That is a considerably more mature question than whether a company should simply “buy Bitcoin.”

As Bitcoin becomes more deeply integrated into institutional portfolios and financial infrastructure, the burden of analysis is shifting. The question facing the C-suite is increasingly not whether Bitcoin belongs in the conversation, but what allocation, if any, can be justified by the company’s objectives, constraints and cost of capital.

BlackRock has now re-underwritten that question after another full market cycle and a roughly 50% drawdown. Its historical portfolio math still makes the case that, in measured amounts, Bitcoin can improve the equation. For corporate decision-makers, that is the takeaway worth bringing into the boardroom.

Disclaimer: This content was prepared on behalf of Bitcoin For Corporations for informational purposes only. It reflects the author’s own analysis and opinion and should not be relied upon as investment advice. Nothing in this article constitutes an offer, invitation, or solicitation to purchase, sell, or subscribe for any security or financial product.

This post BlackRock Re-Underwrites Bitcoin, and the Portfolio Math Still Holds first appeared on Bitcoin Magazine and is written by Nick Ward.

Bitcoin Magazine

Abu Dhabi Sovereign Wealth Funds Keep Big Bitcoin Positions 

Bitcoin is the most important asset in two of Abu Dhabi sovereign wealth funds, according to regulatory filings. 

Abu Dhabi’s Mubadala Investment Company disclosed Friday that it held a $490 million stake in BlackRock’s iShares Bitcoin Trust — the second-largest single holding across its entire 13F portfolio. 

And a Thursday filing from the Abu Dhabi Investment Council, another state-run fund, revealed a $273.6 million position in the popular Bitcoin exchange-traded fund. The stake is the biggest position in its portfolio. 

JUST IN: UAE sovereign wealth funds Mubadala and Abu Dhabi Investment Council report owning a combined $763.7 million of BlackRocks Bitcoin ETF pic.twitter.com/OOnptHhlTA

— Bitcoin Magazine (@BitcoinMagazine) August 14, 2026

Both wealth funds’ position in Bitcoin is unchanged since last quarter. 

Earlier this year, blockchain analytics firm Arkham Intelligence attributed approximately 6,782 Bitcoins — worth roughly $453.6 million at the time of its analysis — to wallets connected to Bitcoin mining activity linked to the UAE’s Royal Group.

The findings highlight a distinction between how the UAE has built its bitcoin position compared with other governments known to hold large amounts of the asset. Countries such as the United States hold substantial Bitcoin reserves that largely originated from law enforcement seizures. 

The UAE’s holdings, by contrast, stem primarily from domestic mining activity rather than confiscated assets.

Since the SEC approved a slew of Bitcoin funds in January 2024, major firms have been able to buy exposure to the asset via shares of the regulated vehicles that trade on stock exchanges. 

BlackRock’s IBIT is the most successful crypto ETF: The fund has received more cash than any other crypto ETF and currently has $47.3 billion in assets under management. 

Pension funds and U.S. states have all bought exposure to Bitcoin via the ETFs, along with more traditional investments like tech stocks and other U.S. equities.

This post Abu Dhabi Sovereign Wealth Funds Keep Big Bitcoin Positions  first appeared on Bitcoin Magazine and is written by Mathew Di Salvo.

BlackRock has reduced the in-kind conversion minimum for its iShares Bitcoin Trust from $25 million to $1 million, potentially making the mechanism available to a wider group of institutional participants.

The change was disclosed in an updated IBIT filing and relates to in-kind creation and redemption activity, not retail holders directly swapping ETF shares for Bitcoin.

That distinction matters.

A lower minimum can improve institutional access, fund mechanics, and operational flexibility, but it does not mean ordinary brokerage users can redeem IBIT shares for BTC in their personal wallets. The process remains limited to authorized participants and qualifying institutional channels.

Still, the reduction is meaningful because it lowers the operational threshold around the largest Bitcoin ETF in the market.

For more details, visit the official Sec platform.

TL;DR

• BlackRock cut IBIT’s in-kind conversion minimum from $25 million to $1 million.
• The change expands access for qualifying institutional participants.
• Retail investors should not read this as direct Bitcoin redemption access.

Why In-Kind Conversion Matters

ETF creation and redemption mechanics can sound boring, but they matter for market structure.

In-kind processes allow authorized participants to create or redeem ETF shares using the underlying asset rather than cash. In a Bitcoin ETF, that means the mechanism can involve BTC moving in or out of the trust structure through approved institutional plumbing.

That can help keep the ETF price aligned with net asset value.

It can also make creation and redemption more efficient for institutions that already operate in crypto markets or have access to BTC liquidity.

By cutting the minimum from $25 million to $1 million, BlackRock is lowering the size threshold for those institutional mechanics.

This Is Not A Retail Redemption Product

The most important caveat is that this is not a retail feature.

A normal IBIT shareholder using a brokerage account should not assume they can redeem shares for physical Bitcoin. ETF plumbing works through authorized participants, market makers, custodians, and institutional processes.

That is why the language matters.

The change may broaden institutional access, but it does not turn IBIT into a direct self-custody product for retail investors.

IBIT remains an ETF wrapper. It gives price exposure to Bitcoin through traditional brokerage rails, not direct control of private keys.

Why The $1M Threshold Could Help

A $25 million minimum is a high bar.

It limits practical access to larger institutions and makes the in-kind process less useful for mid-sized players. Dropping the threshold to $1 million may allow more firms to participate in creation and redemption activity.

That could improve flexibility around liquidity management.

In theory, more accessible in-kind mechanics can support tighter spreads, better arbitrage, and more efficient ETF operations. The actual impact will depend on usage, market-maker participation, and demand.

But for a product as large as IBIT, even operational changes can matter.

Bitcoin ETF Infrastructure Keeps Maturing

This change also shows that the Bitcoin ETF market is still evolving after launch.

The first milestone was approval. The next phase is refinement: fees, liquidity, options, in-kind mechanics, custody processes, creations, redemptions, and institutional workflows.

These are the details that determine how smoothly Bitcoin exposure fits into traditional portfolios.

BlackRock’s adjustment suggests the ETF structure is being tuned for broader institutional use, not just headline asset gathering.

That is a sign of market maturation.

The Bigger Institutional Signal

The reduction does not mean new Bitcoin demand automatically appears.

But it does make the IBIT structure more usable for a wider range of institutional participants. That matters because institutions care about process as much as exposure. Operational thresholds, redemption mechanics, settlement, custody, and compliance all shape whether products are adopted.

Bitcoin ETF access is no longer simply about whether investors can buy shares.

It is about how deeply the product integrates into institutional trading and portfolio systems.

BlackRock’s $1 million threshold is a small number compared with IBIT’s total scale, but it may make the ETF more flexible at the margin.

For Bitcoin, those margin improvements are how traditional-market infrastructure gets built.

This article is based on BlackRock’s updated iShares Bitcoin Trust filing.

This article was written by the News Desk and edited by Samuel Rae.

This report is based on information released by Sec. at Sec

BlackRock’s IBIT and MicroStrategy are both huge Bitcoin accumulation stories, but they are not doing the same thing, and that distinction matters more as the numbers get bigger.

IBIT gathers Bitcoin passively through ETF demand. Investors buy shares, the fund creates exposure, and Bitcoin flows into the product through the ETF mechanism. MicroStrategy, by contrast, actively raises capital, including debt and preferred equity, to buy Bitcoin for its corporate treasury.

Both roads lead to large BTC holdings, but they tell very different stories about how capital enters Bitcoin.

That is why comparing the two is useful, even if it needs to be done carefully. IBIT’s flows can surge when ETF investors are allocating heavily, while MicroStrategy’s purchases depend on financing windows, market conditions, board decisions, and capital structure choices.

In other words, one is a demand pipe. The other is a corporate balance-sheet strategy.

TL;DR

• BlackRock’s IBIT accumulates Bitcoin through ETF investor demand.
• MicroStrategy buys Bitcoin through an active corporate treasury strategy funded by capital markets.
• The comparison is useful, but ETF flows and corporate purchases move on very different cycles.

IBIT Is A Passive Flow Machine

The power of IBIT is its simplicity.

Investors want Bitcoin exposure in a brokerage account, they buy the ETF, and the product channels that demand into BTC. That makes IBIT one of the cleanest visible measures of institutional and advisor-driven Bitcoin appetite.

When flows are strong, the signal is easy to understand: traditional-market investors are adding Bitcoin exposure through a regulated wrapper.

That does not mean every inflow is long-term conviction. Some buyers may be tactical. Some may rebalance. Some may trade around macro events. But ETF demand is still one of the most important structural changes Bitcoin has ever seen.

IBIT’s scale also changes how people compare Bitcoin buyers.

For years, MicroStrategy was the corporate accumulation story. It was the name everyone watched when discussing public companies and BTC treasuries. IBIT has introduced a different kind of accumulation, one tied to thousands or millions of investors using the ETF market rather than a single company making treasury decisions.

MicroStrategy Is An Active Bitcoin Treasury Engine

MicroStrategy is not passive.

The company has deliberately built itself around Bitcoin, using equity issuance, convertible debt, preferred stock, and other capital-market tools to expand its holdings. That is a very different model from an ETF.

It gives shareholders leveraged exposure to management’s Bitcoin strategy, but it also introduces corporate finance questions that do not exist in a plain ETF.

How is each purchase funded? What are the financing costs? How much dilution is involved? What obligations sit ahead of common shareholders? How much cash does the company need to service debt or preferred dividends?

Those questions matter because MicroStrategy is not just holding Bitcoin in a vault. It is building a financial structure around BTC.

That can be powerful when markets are favorable. It can also become complicated when capital conditions tighten or when investors start examining the cost of each new purchase.

The Race Is Not Apples To Apples

It is tempting to frame IBIT and MicroStrategy as being in a race to own the most Bitcoin.

That makes for a neat headline, but it is not the best way to understand the market.

IBIT does not make a corporate decision to buy Bitcoin because it has a bullish view. It responds to ETF creations and redemptions. If investor demand rises, IBIT buys. If demand weakens, flows slow or reverse.

MicroStrategy is different. It chooses when and how to raise capital, and it chooses when to buy BTC. Its strategy is active, directional, and closely tied to the company’s leadership, financing access, and balance-sheet appetite.

So when IBIT inflows outpace MicroStrategy’s buying over a period, that is meaningful, but it does not mean one model has permanently beaten the other. It means ETF demand was stronger than corporate accumulation during that window.

Those windows can change quickly.

Why Both Matter For Bitcoin

The bigger picture is that Bitcoin now has multiple major accumulation channels.

ETFs bring traditional market demand. Corporate treasuries bring balance-sheet demand. Long-term holders, miners, sovereign entities, private funds, and retail investors all add their own flows.

That diversity matters because it makes Bitcoin’s ownership base broader.

In earlier cycles, the market leaned heavily on crypto-native exchanges and retail trading. Now, some of the biggest visible buyers are entities that sit inside traditional finance or public-company capital markets.

IBIT and MicroStrategy represent two different versions of that shift.

One says Bitcoin can be bought like an ETF allocation. The other says Bitcoin can become the center of a corporate treasury strategy.

The Market Will Keep Comparing Them

Traders will keep watching the numbers because both stories are easy to track.

ETF flow dashboards show daily demand. SEC filings and corporate announcements show MicroStrategy’s purchases and financing moves. Together, they give the market a running scoreboard of Bitcoin accumulation.

But the smarter read is not only who bought more.

It is what kind of capital is entering Bitcoin, how sticky that capital might be, and what risks come with each route.

ETF flows can be fast and reversible, but they bring enormous distribution. Corporate treasury buying can be sticky, but it depends on financing discipline. Neither model is perfect. Both are important.

Bitcoin’s market is becoming more institutional, but not in one single way.

IBIT and MicroStrategy show two sides of the same transformation: Bitcoin is no longer only bought by crypto-native traders. It is being absorbed by ETFs, public companies, and capital-market structures that were not built for Bitcoin originally, but are now reshaping how the asset is held.

This article is based on Farside Investors Bitcoin ETF flow data and MicroStrategy SEC filing data.

This article was written by the News Desk and edited by Samuel Rae.

This report is based on information released in disclosures at primary source documentation.