A dark pool block trade worth approximately $1.29 billion in BlackRock’s iShares Bitcoin Trust ETF (IBIT) executed on May 26, with Bitcoin’s price barely flinching. The trade, priced at $43.16 per share, ranks among the largest single institutional transactions in the ETF’s history.
What happened, and why dark pools matter
The block trade hit around 10:30 a.m. ET, surpassing IBIT’s average daily trading volume in a single print. Dark pools are private exchanges where institutional investors can execute massive trades without tipping off the broader market. Institutions use dark pools specifically to avoid the kind of price disruption that a $1.29 billion buy or sell order would cause on a public exchange.
The trade drew significant attention from tracking accounts and traders on social media, even without official confirmation from BlackRock. Some traders reported observing downside pressure on Bitcoin prices around the same time the block printed, but the broader market showed no significant net change.
IBIT’s rise to institutional heavyweight
