US-listed Bitcoin exchange-traded funds (ETFs) have erased their 2026 flow deficit after attracting more than $1.7 billion this week, including $999 million on Sept. 21 and $715 million on Sept. 22, according to SoSoValue. The pace puts the funds on course to exceed their strongest weekly inflow of the year, when they drew about $1.92 billion in the week ended Aug. 21. BlackRock’s iShares Bitcoin Trust (IBIT) accounted for roughly $1.02 billion across four trading sessions, according to Arkham Intelligence. The new demand reversed a $5.69 billion year-to-date deficit recorded by July 13. About $6.04 billion has since returned to the products, lifting the annual result to approximately $349 million in net inflows, with around $3.17 billion arriving during the past 30 days. Bloomberg Intelligence ETF analyst Eric Balchunas linked the renewed buying to August, when Treasury Secretary Scott Bessent signaled increased purchases of longer-dated government bonds. Some market participants interpreted that development as evidence of mounting pressure in long-duration debt markets. Bitcoin has risen about 35% from roughly $64,100 to above $85,000 since then, while the ETFs absorbed about $4.6 billion, Balchunas said. The rally has also restored the average ETF investor to unrealized profit, with the estimated average cost basis near $82,000. Bitcoin briefly reached $87,265 over the past 24 hours before falling to $84,589 at press time, as reported by CryptoSlate. CryptoQuant data showed short-term holders transferred about 47,600 profitable BTC to exchanges as Bitcoin neared $88,000. The coins were worth more than $4 billion near $85,000, although exchange deposits do not necessarily mean the assets were sold. Santiment said unusually large ETF inflows have often clustered around local turning points, warning that heavy demand after a roughly one-third rally can reflect increased euphoria and leave the market more exposed if marginal buying slows. Continued ETF creations could help absorb profit-taking, but a demand slowdown alongside elevated exchange deposits would leave Bitcoin increasingly dependent on other spot buyers to extend the rally.