The average investor in BlackRock's iShares Bitcoin Trust (IBIT) is now sitting on a loss of about 40%, according to Bespoke Investment Group, a sign of how hard this year's selloff has hit the mainstream buyers who came to bitcoin through the largest U.S. spot crypto ETF by assets under management.

IBIT drew cash quickly after its January 2024 launch, and the average investor was up about 30% as recently as mid-2025, per Bespoke data cited by Bloomberg. Bitcoin's decline since then has pushed that into a loss of roughly 40%. Nate Geraci, president of NovaDius Wealth Management, called the loss "a brutal intro to btc for mainstream investors."

IBIT has taken in $60.77 billion since launch but now holds $44.42 billion in net assets, according to SoSoValue data. The roughly $16 billion difference, a product of bitcoin's price drop, has widened from about $13.4 billion that The Block noted in mid-June.

Second-largest weekly outflow since launch

U.S. spot bitcoin ETFs posted about $1.79 billion in net outflows in the week ending Friday, June 26, according to SoSoValue. Only the $2.61 billion exodus of late February 2025 was larger, making it the heaviest weekly outflow since the funds began trading in January 2024.