Two weeks saw over $2.2 billion in outflows: who is retreating amidst the major Bitcoin ETF turmoil?

Overview

In May 2026, US spot Bitcoin ETFs experienced one of the most severe capital withdrawal waves since their launch. Within two weeks, net outflows exceeded $2.26 billion, putting pressure on Bitcoin's price, which fell to around the $74,300 region. This is not a simple short-term fluctuation—the Harvard endowment fund reduced its holdings by 43%, BlackRock's flagship product bled over $400 million in a single day. Signals from institutional players are stacking up, and the market is reassessing the depth and sustainability of this "institutional rally."

Key Takeaways

US spot Bitcoin ETFs recorded net outflows of approximately $2.26 billion in the two weeks ending May 23, 2026, marking one of the deepest single-round drawdowns since their launch in January 2024.

A single-day outflow of $649 million on May 18 was the third-largest net redemption day of the year, with BlackRock's IBIT alone accounting for $448 million.

Harvard University's endowment fund cut its IBIT holdings by 43% in Q1 2026 and completely liquidated its Ethereum ETF position.

Rising US Treasury yields, higher-than-expected inflation data, and increasing expectations of Fed rate hikes constitute the primary macro drivers behind this capital exodus.

Bitcoin found support in the $74,000 to $77,000 range, but analysts warn that if this range is breached, the next line of defense lies at $70,000.

Meanwhile, Abu Dhabi's sovereign wealth fund Mubadala increased its IBIT holdings to approximately $566 million during the same period, highlighting a clear divergence among institutional players.

What Does the $2.26 Billion Outflow Mean?

The magnitude of this capital exodus needs to be understood in context. Since the approval of US spot Bitcoin ETFs in January 2024, these products have accumulated net inflows exceeding $57.1 billion, with total assets under management (AUM) once approaching $99 billion. According to a report from The Block, in just the week from May 15 to May 23, net outflows from spot Bitcoin ETFs reached $1.26 billion, the largest single-week withdrawal since late January 2026.

Combined with approximately $1 billion in outflows the previous week, the total net outflow over the two weeks surpassed $2.26 billion. Analysis from COINOTAG indicates that these 11 US spot Bitcoin ETFs experienced the most concentrated redemption pressure of the current cycle during this period, consequently driving Bitcoin's price down to around $74,300.

However, it's also worth noting: even after the most severe single-day outflow, BlackRock's IBIT net assets remained at $61.1 billion, and the overall asset scale of the ETF system did not collapse. As analysts at Investing.com pointed out, the $649 million single-day outflow represented about 0.76% of the total AUM at the time. It does not constitute a systemic collapse, but it is a signal worthy of attention.

Who is Retreating, Who is Adding

The protagonists of this round of outflows are clear.

BlackRock's IBIT was the single product with the largest redemptions. According to data from Bitcoin.com, on May 18 alone, outflows from IBIT amounted to $448 million, while its Ethereum ETF counterpart, ETHA, saw outflows of $55.4 million on the same day, marking one of the largest single-day redemptions of the year.

At the institutional level, the moves by Harvard University's endowment fund are particularly noteworthy. SEC 13F filings show that Harvard Management Company (HMC) reduced its IBIT holdings from approximately 5.35 million shares to about 3.04 million shares in the first quarter of 2026, a decrease of 43%, involving approximately $117 million. Additionally, the fund completely liquidated its position in the BlackRock Ethereum ETF (ETHA), valued at around $86.8 million. TechFlow, citing Fortune's report, noted that this marks Harvard's third consecutive quarter of reducing its crypto ETF exposure.

However, not all institutions are choosing the same direction. Analysis from Cryptopolitan mentions that during the same period Harvard was reducing its position, Abu Dhabi's sovereign wealth fund Mubadala increased its IBIT holdings to approximately $566 million, marking its seventh consecutive quarter of increasing its position. This divergence itself is telling: the market harbors starkly contrasting judgments on the same asset, both coming from "smart money."

Triple Macro Pressure: Why Institutions are Retreating Now

The narrative of capital outflows cannot be detached from the macroeconomic backdrop.

Inflation and Interest Rate Expectations. Analysis from FXStreet shows that the US CPI year-over-year increase reached 3.8%, higher than market expectations. Concurrently, the yield on the 10-year Treasury note continues to climb, and the market is beginning to price in the possibility of rate hikes before the year ends. The high-interest-rate environment compresses the valuation space for risk assets, with Bitcoin, as a "high-beta asset," being the first to feel the impact.

Technical Resistance Unbreached. After Bitcoin touched $79,052 on May 16, it failed to effectively break through the 200-day moving average (around $82,000). K33 Research believes that the current adjustment is more related to broader macro headwinds than a structural bear market. However, negative funding rates and weakening leverage conditions suggest that market momentum is fading. Market maker Wintermute warns that if Bitcoin falls below $75,000, the next target could be $70,000.

Regulatory Uncertainty. As Investing.com points out, the SEC's delay in approving the "Innovation Exemption" for tokenized stocks, while erasing the market's recent regulatory optimism, triggered the evaporation of approximately $33.8 billion in Bitcoin market capitalization. The US Senate Banking Committee advanced the CLARITY Act with a 15-9 vote, classifying Bitcoin, Ethereum, Solana, and XRP as digital commodities, but the market's reaction to this has been divided.

$74,000: A Defense Line or a Trap?

From a price perspective, the $74,000 to $77,000 range is currently viewed by multiple institutions as a critical support zone.

Technical analysis from Investing.com indicates that if Bitcoin effectively breaks below $76,000, the next defensible level is around $74,000. Should this level be lost, $70,000 would become the next major target to test. Meanwhile, analysis from IG International defines the zone between $73,757 and $74,441 as a key area encompassing recent highs and previous lows.

However, some analysts hold the opposite view. COINOTAG, citing on-chain sentiment analysis, suggests that ETF redemptions often reflect pessimistic expectations at the retail level rather than a structural retreat by institutions. Historically, periods of sustained ETF outflows have often been followed by accumulation opportunities favorable to patient holders. This logic's premise is that the macro environment stabilizes before bond yields further suffocate risk assets.

The Situation for Ethereum ETFs is Worse

This round of outflows isn't just a Bitcoin story.

According to data from The Block, the nine spot Ethereum ETF products recorded net outflows for ten consecutive trading days during the same period, the longest sustained outflow streak since March 2025. Total weekly outflows were approximately $216 million. The net assets of ETHA, the Ethereum counterpart to BlackRock's IBIT, have fallen to a precarious edge, with cumulative net inflows dwindling to just $223 million.

For investors holding or monitoring ETH assets, the structural weakness of Ethereum ETFs warrants independent assessment. Check real-time Ethereum depth and capital flows on MEXC to grasp market trends.

Exclusive Insights from the MEXC Crypto Pulse Research Team

This concentrated outflow from Bitcoin ETFs represents the most direct stress test the "institutional narrative" has faced since 2024. Our research team offers the following assessment:

This is not a collapse of institutional conviction, but a reset of risk parameters. The $2.26 billion outflow sounds alarming, but the baseline for comparison is $57.1 billion in cumulative net inflows. Mubadala's accumulation during Harvard's divestment shows that the same asset class yields completely different conclusions in the risk models of different institutions—this itself is a sign of market maturation, not a crisis signal.

The hold or loss of the $74,000 to $77,000 range will determine the narrative direction for the coming weeks. If Bitcoin can stabilize above this range, considering the total AUM of ETFs remains relatively high, the foundation for the next rebound has not disappeared. If it breaks down, the liquidity concentration zone around $70,000 will face a true test, likely leading to significant repricing behavior at the institutional level.

The core macro variable remains the Federal Reserve. Current inflation data has led the market to discuss the possibility of rate hikes by the year's end. This is the fundamental reason for the pressure on Bitcoin beyond technical factors. If inflation data shows substantial declines in June or July, ETF capital flows could reverse rapidly.

The structural value of the ETF product itself remains unchanged. Harvard's reduction more likely reflects its internal leadership transition and risk model adjustments rather than a fundamental negation of Bitcoin's long-term value. For investors looking to allocate to Bitcoin, the current range offers a more attractive entry point compared to the historical highs seen in February.

Frequently Asked Questions (FAQ)

Q1: Does the outflow from Bitcoin spot ETFs mean institutions have abandoned Bitcoin?

Not entirely. The $2.26 billion outflow still represents a partial retracement relative to the $57.1 billion cumulative net inflow. Divestment by institutions like Harvard occurred simultaneously with accumulation by institutions like Mubadala, indicating divergence in opinion about Bitcoin among institutions rather than a unanimous bearish view.

Q2: What is the main reason for the current Bitcoin price decline?

The core driver comes from the macro front: US CPI exceeding expectations, rising 10-year Treasury yields, and the market repricing of the possibility of Fed rate hikes collectively suppressed risk assets. ETF outflows and price declines formed a mutually reinforcing negative feedback loop, accelerating the downward trend.

Q3: Is $74,000 a strong support level?

Multiple institutional analysts define the $74,000 to $77,000 range as a key zone. A breakdown below this range could trigger wider stop-losses, pushing the price towards $70,000. However, on-chain data shows that long-term holders' positions have not yet seen large-scale distribution, which provides some support for the bottom.

Q4: Is the situation for Ethereum ETFs worse than for Bitcoin?

In terms of outflow duration, yes. Ethereum ETFs recorded net outflows for ten consecutive trading days, nearly double the consecutive outflow streak for Bitcoin ETFs during the same period. Harvard's complete liquidation of its Ethereum ETF position also puts more institutional confidence pressure on ETH compared to BTC.

Q5: How should retail investors respond now?

Periods of high market volatility represent significant windows for systematic positioning and portfolio management, not times for blind bottom-fishing or panicked flight. It is recommended to use real-time data tools available on platforms like MEXC to track ETF capital flows, on-chain holding distributions, and macro indicators before making decisions supported by sufficient information. This article does not constitute any investment advice.

Disclaimer

This article is for informational purposes only and does not constitute any investment advice, financial advice, or trading guidance. The cryptocurrency market is highly volatile, and investment involves significant risks, including the potential loss of principal. Before making any investment decisions, readers should conduct their own due diligence and consult with a professional financial advisor. The MEXC Crypto Pulse team accepts no liability for any losses incurred in reliance on the content of this article.