Bitcoin ETF snapshot: Flows eclipse $1B last week amid ETH fund hype

BlackRock’s iShares Bitcoin Trust is on the cusp of passing Grayscale’s GBTC in assets under management

article-image

nuttapon averuttaman/Shutterstock modified by Blockworks

share

During a week headlined by a key approval for US spot ether ETFs, investor capital poured into America’s bitcoin funds. 

Nearly $1.1 billion collectively entered the 11 US spot bitcoin ETFs, according to Farside Investors data. 

It marked the third straight week of net inflows for the fund category after four consecutive weeks of outflows. 

Last week’s flows marked the highest weekly bitcoin ETF inflow total since the segment saw more than $2.5 billion from March 11 to March 15. The latest total narrowly eclipsed the $948 million of inflows reeled in by the funds between May 13 and May 17.

Read more: Bitcoin ETF snapshot: Week’s inflows hit highest mark since March

BlackRock’s iShares Bitcoin Trust (IBIT) led the way with $720 million of net inflows, the data indicates. 

IBIT is on the cusp of surpassing the category leader in assets, the Grayscale Bitcoin Trust ETF (GBTC). As of Friday, IBIT and GBTC managed about $19.6 billion and $20 billion, respectively. 

Grayscale has seen more than $17.6 billion of net inflows since converting to an ETF in January — though those have abated in recent weeks.

David LaValle, the firm’s head of ETFs, said during an event last month that the company “anticipated” the initial wave of outflows given the different types of GBTC holders. 

“We had a number of institutional traders that were taking on positions when the product was trading at a discount to its net asset value,” LaValle noted at the time. “[The conversion] gave the opportunity for those investors to unwind those positions.”

Grayscale is also seeking to launch a cheaper version of GBTC.

Read more: SEC rule approvals set stage for spot ether ETF launches

James Butterfill, head of research at CoinShares, wrote in a Tuesday report that the inflows into bitcoin ETFs are likely partially due to investors interpreting the Federal Open Market Committee’s minutes and recent macro data as “mildly dovish.”

During a week in which the Securities and Exchange Commission approved 19b-4 proposals for a range of spot ether ETFs, ether-related products in other countries saw $36 million worth of inflows. 

Overall, year-to-date net inflows into digital asset investment products so far total a record-high $14.9 billion, CoinShares data shows.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Research Report Templates (8).png

Research

Kinetiq has established itself as Hyperliquid's dominant liquid staking protocol, holding 82.5% of LST market share with $610M in TVL. The protocol is now expanding beyond its kHYPE staking core into higher take-rate verticals: iHYPE for institutional custody rails, Launch for HIP-3 capital formation, and Markets for builder-deployed perpetuals. We view Markets, launching Jan. 12, as the highest-potential product line given its mechanically scalable, activity-linked unit economics. Near-term revenue remains anchored by kHYPE's KIP-2 fee schedule (~$1.6M annualized), while Markets provides embedded optionality if HIP-3 economics normalize post-Growth Mode. KNTQ's setup is relatively clean: zero insider unlocks until November 2026, 6.2% buyback yield from staking revenue, and cleared airdrop overhang. Risks center on unproven Markets execution, declining kHYPE TVL despite ongoing incentives, and competition from Hyperliquid's native initiatives.

article-image

BTC finished the week up 1.6%, while L2s, RWAs and the treasury trade continued to grind lower

article-image

DTCC moves DTC-custodied Treasuries onchain via Canton, while Lighter’s LIT launches trading at a fees multiple in Hyperliquid territory

article-image

In the 90s, rapt audiences worldwide watched a coffee pot — will that fascination ever turn to crypto?

article-image

Some systems improve by failing — and crypto has no choice

article-image

Yield Basis introduces an IL-free AMM design that already dominates BTC DEX liquidity

article-image

Maybe tokenholders don’t need the rights that corporate shareholders have come to expect

Newsletter

The Breakdown

Decoding crypto and the markets. Daily, with Byron Gilliam.

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

NewsPodcastsNewslettersEventsRoundtablesAnalytics