US spot Bitcoin exchange-traded funds (ETFs) continued to attract investments for the sixth consecutive trading day on Monday, with an additional $337.6 million flowing in. This brings the total inflow in the past six days to approximately $2.26 billion, making August the strongest month for these funds in 2026. The total inflow for August has already surpassed April’s previous monthly record of around $1.97 billion, reaching approximately $2.72 billion.
The recent surge in inflows can be attributed to the renewed interest in Bitcoin as the cryptocurrency surged past $70,000 and approached $80,000. In fact, Bitcoin reached above $80,000 on Tuesday for the first time since May, resulting in a 28% gain for August. Among the Bitcoin ETFs, BlackRock’s iShares Bitcoin Trust (IBIT) has seen significant demand, attracting about $1.33 billion last week and an additional $208.9 million on Monday, accounting for the majority of the day’s inflows. Fidelity’s FBTC followed with approximately $104.6 million.
Despite months of weak demand for ETFs, the recent rebound has helped reverse the trend, with the products now recording roughly $2.57 billion in net inflows for 2026. This surge in inflows in August indicates a return of capital to the funds after a prolonged period of decline earlier in the year.
Alongside the increase in inflows, there has been a significant rise in trading activity for US spot Bitcoin ETFs. Data from CheckOnChain shows that ETFs generated about $22.1 billion in turnover last week, more than triple the amount traded the previous week. This trend continued on Monday with an additional $5.36 billion in trading volume as Bitcoin’s rally continued.
The rise in trading volume indicates a growing interest in ETFs beyond just inflows, with investors actively participating in the market. Additionally, there has been a surge in options trading activity around IBIT, with call-option volume reaching record levels. This indicates a bullish sentiment among traders as Bitcoin’s price climbs.
Overall, the combination of increased inflows, rising trading activity, and Bitcoin’s price appreciation has pushed the total assets in US spot Bitcoin ETFs to $98.56 billion, just shy of the $100 billion mark. This marks a rapid recovery from mid-August when the funds held around $76.6 billion. The recent surge in assets is a result of both the rising value of Bitcoin held by the funds and new capital inflows, indicating a strong comeback for Bitcoin ETFs. Another $1.44 billion increase in assets would push US spot Bitcoin ETFs back above the $100 billion threshold, solidifying the recovery with broad support from various market activities.
