Bitcoin ETF Inflows Soar, With BlackRock's iShares Bitcoin Trust (IBIT) Leading the Pack

Capital poured into US-listed Bitcoin exchange-traded funds this week, with Tuesday alone witnessing nearly $1 billion in fresh cash.

Capital flowed into US-listed Bitcoin exchange-traded funds (ETFs) this week, with nearly $1 billion in fresh cash hitting the funds on Tuesday alone, data from Bloomberg showed.

The investment deluge pushed weekly inflows to $1.2 billion and AUM to $103 billion. The cryptocurrency also rose above $93,000, reaching $93,700, its highest since early March.

BlackRock’s iShares Bitcoin Trust (IBIT) is the top dog among rivals, with year-to-date inflows of $2.7 billion. The fund took in another $346 million last week.

At the same time, Ark Invest’s ARKB and Grayscale’s Bitcoin funds are lagging with significantly smaller year-to-date inflows of $410.41 million and $385.31 million, respectively.

However, Grayscale’s GBTC has seen $1.18 billion of outflows since January, going against the overall positive tide.

The spot bitcoin ETFs went Pac-Man mode yesterday, +$936m, $1.2b for week. Also notable is 10 of 11 of the originals all took in cash too. Good sign to see flow depth vs say $IBIT doing 90% of the lifting. Price up $93.5k. Pretty strong all things considered IMO.

— Eric Balchunas (@EricBalchunas) April 23, 2025

Ten of the 11 spot Bitcoin ETFs saw inflows of fresh funds this week, and the value traded across all Bitcoin spot ETFs totaled $496 million, while net assets in them now represent nearly $57 billion, about 2.80% of Ethereum’s market cap.

As Bitcoin-linked investments continue to soar, Ethereum products simply can’t seem to get a break, with investment products centered around the altcoin losing yet another $26.7 million last week, bringing the eight-week outflow amount to $772 million.

Even in the face of this continued outflow, Ethereum remains in second place for year-to-date inflows at $215 million.

Short Bitcoin products are also experiencing the squeeze, with seven consecutive weeks of outflows from short BTC products, resulting in a net outflow of $1.2 million.

These short bets have now lost $36 million over seven weeks, or 40% of their AUM, according to CoinShares data. The ongoing outflows from short positions are consistent with Bitcoin’s recent price strength and the broader market trend.

Only XRP is bucking the trend among alternative coins, as its investment products attracted over $37 million last week, the third highest for year-to-date inflows at $214 million.

This stands in contrast to most other altcoins, which are still facing selling pressure. Certainly, all of this new money being poured into Bitcoin ETF investments is perhaps the clearest sign yet that traditional financial institutions are coming around to cryptocurrency as an asset class.

We’re talking almost $1 billion coming into the market in just one day: this looks like the dawn of a new era in which acceptance of the asset class by the mainstream is even greater.