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BlackRock Dominates Crypto Custody: The Rise of Institutional ETFs in Bitcoin and Ethereum

· By Dave Wolfy Wealth · 3 min read

In the rapidly evolving landscape of cryptocurrency investment, BlackRock has emerged as a dominant player in crypto custody, particularly for Bitcoin and Ethereum.

As institutional interest surges, the asset management giant's exchange-traded funds (ETFs) have started to significantly shape the market dynamics.

With the iShares Ethereum ETF amassing
3.6 million ETH—closing in on Coinbase's holdings—and the Bitcoin ETF, IBIT, holding an impressive 745,000 BTC and surpassing major exchanges like Coinbase and Binance, the trend indicates a marked preference among institutional investors for regulated ETF frameworks over traditional custodial platforms.

This article explores BlackRock's strategic positioning in the crypto space and the broader impact of institutional ETFs on Bitcoin and Ethereum markets.

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Key Takeaways

  • BlackRock is now the leading custodian of Bitcoin and Ethereum through its prominent ETFs.
  • Institutional investors are increasingly favoring regulated ETFs over traditional exchanges for crypto custody.
  • Recent trends indicate a tightening supply of Bitcoin and Ethereum, reflecting growing institutional confidence in the market.

BlackRock's Strategic Positioning in Crypto Custody

BlackRock's entrance into the cryptocurrency market has marked a pivotal moment in the evolving landscape of digital asset custody.

As the company leads the charge with its exchange-traded funds (ETFs), it has rapidly positioned itself as the predominant custodian for Bitcoin and Ethereum.

Notably, BlackRock's iShares Ethereum ETF currently manages an impressive
3.6 million ETH, closely trailing behind Coinbase, which holds 200,000 more ETH at
3.8 million.

Meanwhile, BlackRock's Bitcoin ETF, known as IBIT, has soared to a remarkable 745,000 BTC, outperforming both Coinbase and Binance, securing its status as the leader in crypto custodial services.

This shift highlights a decisive trend: institutional investors are gravitating towards regulated ETFs, moving away from traditional exchange custodians.This transition is evident as Coinbase's Ethereum reserves have dramatically declined from over 8 million ETH in 2019 to
3.8 million today, while Binance retains its leading position with
4.7 million ETH.

Concurrently, data reveals that inflows into Bitcoin and Ether across exchanges have plummeted to historic lows, suggesting that investors are increasingly hesitant to liquidate their holdings.

This tightening supply scenario emphasizes a growing institutional confidence in these flagship cryptocurrencies.

Furthermore, Ether ETFs have recently attracted upwards of $

1.5 billion in net inflows, showing a stark contrast to the more erratic inflows associated with Bitcoin ETFs, signaling robust demand in the market.

Collectively, these emerging patterns point toward a potentially bullish trend for both Bitcoin and Ethereum, as the crypto market braces for a future that is increasingly shaped by institutional investment strategies.

Impact of Institutional ETFs on Bitcoin and Ethereum Markets

The shift in cryptocurrency custody toward institutional exchange-traded funds (ETFs) represents a transformative period for Bitcoin and Ethereum markets.

As financial giants like BlackRock make substantial inroads, the trend highlights not only increased institutional engagement but a broader acceptance of digital assets within regulated frameworks.

Institutional ETFs, such as BlackRock’s iShares Ethereum ETF, have proven attractive due to their ability to provide investors with exposure to crypto assets while circumventing some of the risks associated with traditional exchanges.

This has led to a tightening of available supply on exchanges like Coinbase and Binance as investors hold funds in these regulated products rather than liquidating them.

Moreover, the surge in net inflows to Ethereum ETFs, outpacing those of Bitcoin ETFs, illustrates a growing confidence among institutions to diversify their portfolios with cryptocurrencies.

As this dynamic unfolds, it is critical for market participants to observe how these trends may influence price movements and overall market stability.

By Wolfy Wealth - Empowering crypto investors since 2016

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Disclosure: Authors may be crypto investors mentioned in this newsletter. Wolfy Wealth Crypto newsletter, does not represent an offer to trade securities or other financial instruments. Our analyses, information and investment strategies are for informational purposes only, in order to spread knowledge about the crypto market. Any investments in variable income may cause partial or total loss of the capital used. Therefore, the recipient of this newsletter should always develop their own analyses and investment strategies. In addition, any investment decisions should be based on the investor's risk profile.

About the author

Dave Wolfy Wealth Dave Wolfy Wealth
Updated on Aug 28, 2025