A significant $1.29 billion trade in BlackRock's spot Bitcoin ETF, IBIT, did not impact Bitcoin's price, which remained above $75,900. The transaction, equivalent to about 16,400 Bitcoin, was executed around 10:30 AM Eastern Time and briefly surpassed IBIT's daily trading volume. Despite the trade's size, the market absorbed it without significant price fluctuations, highlighting the capacity of dark pools to facilitate large institutional trades without disrupting public markets. Dark pools, private trading venues used by institutions, allow for off-exchange order matching, minimizing direct market impact. This trade comes amid a period of weakened fund flows into spot Bitcoin ETFs, with nearly $2 billion in net outflows over the past seven days, following six weeks of net inflows.