Bitcoin and Ethereum ETFs Record Massive Inflows, BlackRock Leading the Pack

Bitcoin ($BTC) and Ethereum ($ETH) exchange-traded funds (ETFs) are getting notable attention among institutional investors. As per the latest data from Lookonchain, Bitcoin ($BTC) ETFs account for 6,387 $BTC in net inflows while Ethereum ($ETH) ETFs have seen cumulative inflows of 8,404 $ETH. The on-chain analytics firm took to social media to share insights into the daily crypto ETF inflows.

May 20 Update:

10 #Bitcoin ETFs
NetFlow: +6,387 $BTC(+$666.72M)🟢#iShares(Blackrock) inflows 2,908 $BTC($303.6M) and currently holds 636,120 $BTC($66.4B).

9 #Ethereum ETFs
NetFlow: +8,404 $ETH(+$20.83M)🟢#iShares(Blackrock) inflows 5,449 $ETH($13.5M) and currently holds… pic.twitter.com/OKmNWBofEO

— Lookonchain (@lookonchain) May 20, 2025

$BTC ETFs See $666.72M in Net Inflows, while $IBIT Dominates with 2,908 $BTC in Single-Day Inflows

Overall, Bitcoin ($BTC) ETFs have added up to $666.72M in total 24-hour inflows, accounting for $6,387 $BTC. Specifically, BlackRock’s iShares Bitcoin Trust ($IBIT) has led this inflow spree with the inclusion of a staggering 2,908 $BTC in a single day. This amount equals up to $303.6M in value. As a result of this, the total Bitcoin holdings of the ETF have reached the 636,120 $BTC mark, signifying $66.4B.

Apart from that, the $FBTC ETF of Fidelity has added almost 1,789 $BTC, raising the total holdings to 199,840 $BTC. Simultaneously, the ARK 21Shares ($ARKB) ETF has obtained 1,476 $BTC in inflows. On the other hand, the $GBTC ETF of Grayscale and the $BTCO ETF of Invesco have witnessed sheer outflows. Hence, the former saw 23 $BTC in outflows while the latter recorded the exclusion of 61 $BTC.

$ETH ETFs Witness $20.83M in Inflows, While $EHTA Stays Atop with 5,449 $ETH in Total Inflows

In the meantime, the Ethereum ($ETH) ETFs have added nearly $20.83M in inflows, accounting for 8,404 $ETH. Just like $BTC ETFs, BlackRock’s iShares Ethereum Trust ($ETHA) topped the other Ethereum ETFs. Thus, it added 5,449 $ETH, equaling approximately $13.5M. This inflow surge has pushed its $ETH holdings to 1,289,892 $ETH ($3.2B).

As per Lookonchain’s data, Grayscale Ethereum Mini Trust ($ETH) saw 3,290 $ETH in inflows. Subsequently, its holdings have reached 489,957 $ETH. However, Grayscale’s Ethereum Trust ($ETHE) has seen a slight outflow of 231 $ETH. Contrarily, $FETH of Fidelity has remained unchanged in terms of net flows. Therefore, its overall Ethereum holdings are still 395,921 $ETH.

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