K33 Research: US Spot ETH ETFs Projected to See $3B–$4.8B in Inflows Over First Five Months

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The anticipation surrounding the potential approval of spot Ethereum (ETH) exchange-traded funds (ETFs) in the United States has intensified, with K33 Research forecasting significant early momentum. According to the crypto analytics firm, a newly launched spot ETH ETF could attract between $3 billion and $4.8 billion in net inflows within its first five months of trading.

👉 Discover how ETF inflows could reshape ETH market dynamics and investor strategies.

This projected capital influx, based on current ETH price levels, would equate to the accumulation of approximately 800,000 to 1.26 million ETH—representing roughly 0.7% to 1.05% of Ethereum’s total circulating supply. Such a scale of on-chain accumulation through regulated financial products could trigger a supply shock, tightening available liquidity and potentially fueling upward price pressure.

Market Impact of Supply Absorption

One of the most compelling aspects of this forecast is the anticipated effect on ETH’s supply dynamics. As ETFs typically hold underlying assets in cold storage or secure custodial solutions, the ETH purchased for these funds is effectively removed from short-term circulation.

Vetle Lunde, analyst at K33 Research, emphasized that this absorption of supply could serve as a key catalyst for price appreciation. With fewer tokens available for trading on open markets, even modest demand growth could lead to outsized price movements—a phenomenon previously observed during Bitcoin ETF launches and earlier Ethereum bull cycles driven by staking and decentralized finance (DeFi) lockups.

Historically, structural shifts that reduce liquid supply—such as increased staking participation or institutional holdings—have correlated strongly with sustained price rallies. The introduction of spot ETH ETFs may now represent the next evolutionary step in this trend.

Addressing the Staking Question

A major point of debate among investors has been whether the exclusion of staking rewards in initial ETF offerings will deter capital inflow. Unlike direct ETH ownership or staking pools, traditional ETF structures are unlikely to pass staking yields back to shareholders due to regulatory and operational complexities.

However, K33 Research remains confident that this limitation will not significantly hinder adoption. “Investor demand is primarily driven by accessibility, security, and regulatory clarity,” the report notes. For many institutional and retail participants, the ability to gain exposure to ETH through a familiar, SEC-regulated vehicle outweighs the absence of yield generation.

This view contrasts with earlier skepticism from institutions like JPMorgan, which estimated a more conservative $3 billion in annual inflows and expressed concern over the lack of staking incentives. K33’s higher projection suggests stronger underlying demand, particularly from asset managers, pension funds, and wealth advisors seeking compliant crypto exposure.

Comparisons with Bitcoin ETF Performance

To contextualize these projections, it’s useful to examine the performance of spot Bitcoin ETFs following their January 2024 approval. Within weeks, products like those from Fidelity and Bitwise began drawing hundreds of millions in daily inflows, ultimately surpassing $15 billion in total net flows by mid-2024.

While Ethereum’s market ecosystem differs from Bitcoin’s—being more oriented toward smart contracts, DeFi, and NFTs—the investment thesis for an ETF remains similar: regulated access to a top-tier digital asset with proven network effects and growing institutional interest.

👉 Learn how early ETF trends are setting the stage for Ethereum’s next growth phase.

Given Ethereum’s larger user base, higher transaction volume, and broader utility beyond store-of-value use cases, some analysts believe ETH ETFs could match or even exceed BTC ETF adoption rates over time—especially if Ethereum continues to solidify its position as the foundational layer for decentralized applications.

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Frequently Asked Questions (FAQ)

Q: When is the US spot ETH ETF expected to launch?
A: While no official date has been confirmed, the SEC is expected to make a decision on several applications by August or September 2025, depending on the issuer and filing schedule.

Q: Why would an ETH ETF cause a supply shock?
A: Because ETFs hold physical ETH in custody, large-scale purchases reduce the amount of freely tradable supply. When demand stays constant or increases while supply tightens, upward price pressure typically follows.

Q: Will ETH ETFs include staking rewards?
A: Initial versions are unlikely to offer staking yields due to regulatory constraints. However, future iterations or alternative products (like ETPs) may incorporate yield mechanisms if frameworks evolve.

Q: How does K33 Research’s estimate compare to other firms?
A: K33’s $3B–$4.8B five-month forecast is more optimistic than JPMorgan’s $3B annual estimate, reflecting stronger confidence in institutional appetite and retail participation.

Q: What percentage of total ETH supply might be held in ETFs?
A: Based on K33’s model, up to 1.05% of the total circulating supply (around 1.26 million ETH) could be absorbed within five months—a meaningful but not dominant share.

Q: Can retail investors benefit from spot ETH ETFs?
A: Yes. These funds will allow everyday investors to gain exposure via traditional brokerage accounts, lowering entry barriers related to wallets, private keys, and exchange risks.


The arrival of spot ETH ETFs marks a pivotal moment in cryptocurrency’s journey toward mainstream finance. With K33 Research projecting robust early inflows and lasting market impact, the next phase of Ethereum’s evolution may be defined not just by technology upgrades—but by institutional capital flows.

👉 See how global investors are preparing for the next wave of crypto innovation.