US spot Bitcoin ETFs recorded $189.3 million in inflows on Tuesday, August 18, 2026. After $297.6 million the day before, the month’s cumulative is now approaching $1 billion according to SoSoValue. A notable rebound, even if a large part of capital continues to flow towards BlackRock’s IBIT.
In brief
- US Bitcoin ETFs attracted $189.3 million on August 18, following $297.6 million the day before.
- BlackRock’s IBIT captured $143.6 million, or nearly 76% of the daily net flow.
- Ether ETFs received around $71.5 million in the same session.
- The monthly accumulation of Bitcoin ETFs is approaching one billion, with slight differences depending on the source.
Nearly $487 million in just two sessions
The return of capital is not limited to the session of August 18. The day before, Bitcoin ETFs had already attracted $297.6 million, according to SoSoValue data taken by Cointelegraph.
In two days, entries reached $486.9 million. This represents a little more than half of the approximately 951 million dollars recorded since the start of the month according to this same source.
Farside’s numbers tell virtually the same story. The platform recorded 297.5 million dollars on Monday and 189.3 million on Tuesday, or 486.8 million dollars in two sessions.
This rebound comes after three much less favorable days. Between August 12 and 14, ETFs had seen approximately $248.4 million in net outflows. The flows of the last two sessions have therefore largely compensated for this decline.
However, this is not enough to speak of a lasting change in trend. Two positive days are still too few to conclude that there has been a massive and established return to demand.
BlackRock’s Bitcoin ETF largely dominates inflows
Once again, BlackRock occupies a central place in the rebound. His iShares Bitcoin Trust, IBIT, received $143.6 million on August 18. Fidelity’s FBTC comes far behind with 23.9 million.
IBIT alone accounts for approximately 75.9% of the day’s net inflows. The recovery therefore exists, but it remains highly concentrated on a single product.
As of August 18, BlackRock also indicated $48.44 billion in net assets for IBIT. This figure does not correspond to the flows of the session, but illustrates the weight now taken by the fund on the American Bitcoin ETF market.
Ether also benefits from a return of capital, but in more modest proportions. Spot Ether ETFs attracted around $71.4 million to $71.5 million on Tuesday. Inflows into Bitcoin were thus approximately 2.6 times higher.
The billion gets closer, but the numbers diverge slightly
For the whole month of August, the different databases do not give exactly the same total.
SoSoValue places net inflows around $951 million as of August 18. For its part, the addition of daily data published by Farside results in approximately 966.9 million.
The gap remains limited, around $16 million. It may in particular come from differences in updates or in the way of accounting for certain flows. In the absence of a precise explanation, talking about a total of “close to a billion dollars” therefore remains more cautious.
What happens next will mainly depend on the duration of the movement. If inflows continue and start to spread more across different ETFs, the recovery signal will gain credibility. Conversely, a rapid return of outflows would confirm that it was only a one-off rebound.
For the moment, the August 18 session mainly marks the return of capital after several difficult days. IBIT remains the main driver of the movement, while the symbolic threshold of one billion dollars in August is getting closer.
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