8-9 trillion USD in OTC cash waiting? BlackRock says funds are accelerating the return to risk assets.

As of the end of May 2026, the total size of U.S. money market funds has reached $8.28 trillion, setting a new record. This figure was approximately $8.27 trillion in early March 2026, while at the end of 2022, this size was only $5.2 trillion—an expansion of nearly 60% in just over three years. Rick Rieder, Chief Investment Officer of Global Fixed Income at BlackRock, estimates this range to be between $8 trillion and $9 trillion.

The reason why such massive funds are heavily concentrated in money market funds fundamentally lies in the high uncertainty of the global macro environment over the past few years. Geopolitical conflicts, recurring inflation, and unclear interest rate paths—these factors collectively drive investors to park their funds in short-term government securities with low yields but principal safety. Money market funds mainly invest in highly liquid short-term debt instruments and are regarded as the best alternative to cash equivalents.

However, these funds are not “dead money.” Their existence itself is a huge liquidity reservoir—once trigger conditions are met, they can rapidly flow into risk assets at any time.

How the US-Iran Peace Agreement Becomes a Direct Catalyst for Capital Reflow

In June 2026, the U.S. and Iran reached a peace memorandum of understanding. According to the currently disclosed framework, the memorandum covers key issues such as opening the Strait of Hormuz and Iran not acquiring nuclear weapons. Both sides are expected to sign the agreement officially in Geneva, Switzerland, on June 19.

The immediate impact of this geopolitical breakthrough is a sharp rebound in risk appetite. For a long time, Middle East tensions have been a key variable suppressing valuations of global risk assets—the risk of passage through the Strait of Hormuz directly relates to oil prices and inflation expectations, while Iran’s nuclear issue adds broader geopolitical uncertainty. The achievement of the US-Iran agreement largely eliminates this suppressive factor.

Rieder explicitly stated in an interview on June 16 that the agreement with Iran has removed a critical geopolitical risk, accelerating the flow of funds from money market funds into risk assets. He described this process as potentially having an “explosive” effect. Market reactions showed the S&P 500 index surged intraday by 2%, the Nasdaq 100 soared over 3%, U.S. Treasuries moved higher in tandem, and oil prices retreated due to expectations of the Strait of Hormuz reopening. The simultaneous rise of stocks and bonds itself is a typical signal of funds dispersing from cash-like assets into broader markets.

How SpaceX’s Largest IPO in History Reshapes Investor Asset Allocation Logic

If the US-Iran agreement addresses the “why now” question of entry, then SpaceX’s IPO solves the “what to buy upon entry” question.

On June 12, 2026, SpaceX officially listed on NASDAQ under the ticker SPCX. The IPO raised approximately $85.7 billion, with the company’s valuation surpassing $2.1 trillion on the first day, a 19% increase from the offering price, with a closing price of $192. This is the largest IPO in U.S. history.

Rieder clearly pointed out that SpaceX’s IPO has forced investors to adjust their portfolios and free up space, thereby generating upward momentum. The logic is: a newly listed stock with a market cap exceeding $2 trillion entering the tradable asset pool will inevitably trigger a large-scale portfolio rebalancing. Institutional investors need to sell some existing holdings and buy SpaceX, while retail investors might withdraw funds from money market funds to participate in the subscription. This rebalancing itself pushes outside capital “into” the broader capital markets.

More importantly, options related to SpaceX began trading on June 17 (Tuesday). Market participants believe that, driven by retail funds, these contracts could heat up rapidly, even triggering a “gamma squeeze” caused by concentrated buying of call options. The leverage effect of the options market could further amplify the impact of capital inflows into risk assets.

Pathways and Mechanisms of Capital Transmission from Money Funds to Risk Assets

Understanding how this $8-9 trillion in funds influences the crypto market requires clarifying the transmission chain from money market funds to risk assets.

First layer: Direct reallocation. When investors believe that the expected returns of risk assets are sufficient to compensate for their risks, they will redeem shares from money market funds and invest in stocks, bonds, or cryptocurrencies. This is the most direct transmission path.

Second layer: Indirect liquidity spillover. Even if only part of the money market fund capital flows into equities, the rise in the stock market can spread through wealth effects and risk appetite expansion, indirectly boosting investor interest in cryptocurrencies. For example, Bitcoin approached $67,000 after the US-Iran agreement, rising 1.0% within 24 hours to $66,184, exemplifying this spillover effect.

Third layer: Potential shift in Federal Reserve policy framework. Rieder anticipates that the new Fed Chair Kevin Warsh may focus more on balance sheet and money supply management rather than solely relying on short-term interest rate tools. If the Fed’s policy framework shifts from “rate-driven” to a combination of “balance sheet and money supply,” the structural change in the massive funds in money market funds could itself become an important reference variable for policy decisions.

Fourth layer: Resilience of “peripheral assets” like cryptocurrencies. During liquidity expansion phases, cryptocurrencies—due to their relatively small market cap and high liquidity elasticity—often become the biggest beneficiaries of marginal capital inflows. On-chain analytics firm Santiment pointed out that the US-Iran agreement shifted market narratives from fear to opportunity, with capital flowing back into Bitcoin, Ethereum, and other cryptocurrencies.

This Week’s Market Event Window: Triple Witching, Options, and Volatility Risks Overlapping

The market environment this week is not calm. The overlapping timing of multiple events could amplify the impact of capital reflow on the markets.

Because June 19 (Juneteenth) is a market holiday, this quarter’s “triple witching” (simultaneous expiration of stock index futures, index options, and single-stock options) has been moved forward to June 18 (Thursday). Meanwhile, the S&P 500’s quarterly rebalancing will also take effect after Thursday’s close. The combination of triple witching and index rebalancing inherently leads to increased trading volume and volatility.

More critically, SpaceX options began trading on Tuesday. Brent Kochuba, founder of SpotGamma, warned that, against the backdrop of the continuous rise of U.S. stocks since April, market makers’ hedging pressures are accumulating. If the new Fed Chair Warsh signals unexpectedly hawkish in his first press conference, the market will have little buffer to absorb the shock.

This means that the trend of capital reflow combined with the event window could create a two-way amplification—accelerating inflows during upward moves and increasing volatility during declines.

The Position of Cryptocurrencies in This Liquidity Reconfiguration

What is the position of cryptocurrencies in this round of capital reallocation? It can be observed from three dimensions.

From asset attributes: Bitcoin is gradually shifting from an “alternative asset” to “digital gold” within institutional portfolios. Rieder explicitly links this round of rally to Bitcoin—its synchronized rise with stocks and U.S. Treasuries is no coincidence.

From capital flow pathways: There are clear signs of off-exchange (OTC) inflows. In early 2026, OTC trading volume at major exchanges reached about a quarter of the total volume for all of 2025 within the first two months. This indicates that institutional-level capital had already begun positioning before the US-Iran agreement.

From market structure: As of June 16, 2026, Bitcoin’s price was $66,184, up over 11% from the low of about $59,375 in early June. This rebound was driven by the concentrated release of multiple liquidity catalysts—geopolitical risk removal via the Iran deal, the SpaceX IPO prompting portfolio rebalancing, and derivatives event windows amplifying volatility—rather than a single fundamental improvement.

Of course, this liquidity-driven rally also faces risks. As some market participants point out, the “everything rally” may fade. If the pace of capital reflow is slower than expected or if the new Fed Chair’s signals are less optimistic than the market anticipates, the current risk appetite recovery could be re-priced.

Summary

The $8-9 trillion in funds described by BlackRock as “waiting to be unlocked” in money market funds is essentially a structural narrative about liquidity re-pricing. The US-Iran peace agreement resolves the largest source of geopolitical uncertainty, while the largest IPO in history by SpaceX provides a concrete asset allocation anchor. The overlay of these factors, combined with this week’s triple witching, options listings, and event windows, is pushing massive outside cash into stocks, bonds, and cryptocurrencies.

For the crypto market, this liquidity reconfiguration signifies: it confirms Bitcoin’s role as a “marginal elastic asset” in the risk asset sequence—during liquidity expansion cycles, cryptocurrencies tend to be among the biggest beneficiaries of marginal capital inflows. But it’s also crucial to remain aware that liquidity-driven rallies can reverse if liquidity expectations change. The pace of capital reflow, the new Fed Chair’s policy framework, and derivatives market volatility are key variables shaping market trends in the coming weeks.

FAQ

Q: What exactly does BlackRock mean by the $8-9 trillion in funds?

It refers to the massive cash currently parked in U.S. money market funds. By the end of May 2026, the total size of U.S. money market funds reached $8.28 trillion. Rick Rieder believes that a significant portion of this capital is accelerating its return to risk assets due to the US-Iran agreement and IPO boom.

Q: Will these funds necessarily flow into the crypto market?

Not necessarily directly. Rieder describes the capital as accelerating its flow into “risk assets”—including stocks, bonds, and cryptocurrencies. As a risk asset class, cryptocurrencies may benefit from the spillover effects of overall liquidity expansion, but the specific inflow scale depends on investor risk preferences and asset allocation decisions.

Q: How does the US-Iran agreement specifically impact the crypto market?

The agreement influences the crypto market mainly through three pathways: first, by directly boosting global risk appetite, prompting funds to shift from cash-like assets into risk assets including cryptocurrencies; second, by easing oil prices and inflation pressures, indirectly improving macro liquidity conditions; third, by shifting market narratives from “fear and uncertainty” to “opportunity and reallocation.”

Q: How does SpaceX’s IPO affect the crypto market?

SpaceX’s largest IPO (raising about $85.7 billion) forces institutional investors to rebalance portfolios and free up capital. This rebalancing behavior itself drives funds from cash-like assets into broader capital markets. Additionally, the listing of SpaceX options may trigger “gamma squeezes” and derivatives effects, further amplifying volatility.

Q: What is the current market situation for Bitcoin?

As of June 16, 2026, Bitcoin’s price is $66,184, up 1.0% within 24 hours. This is over an 11% rebound from the early June low of approximately $59,375.

Q: What risks does this round of capital reflow face?

Main risks include: the pace of capital inflows being slower than expected, the new Fed Chair’s signals being less optimistic, and event windows like triple witching and options expirations potentially amplifying two-way volatility. Liquidity-driven rallies can also quickly reverse if liquidity expectations shift.