US spot Bitcoin exchange-traded funds (ETFs) drew $189.3 million in net inflows on Tuesday, lifting August net inflows to about $951 million.

The latest gains followed $297.6 million in net inflows on Monday, bringing the two-day total to $487 million, or more than half of the funds’ net inflows so far this month, according to SoSoValue data. The products began trading in January after the US Securities and Exchange Commission approved spot Bitcoin ETFs, and their daily flows have since become a closely watched gauge of demand from investors seeking Bitcoin exposure through conventional brokerage accounts rather than direct crypto holdings.

BlackRock’s iShares Bitcoin Trust led the day’s inflows with $143.6 million, while Fidelity’s Wise Origin Bitcoin Fund added $23.9 million. The iShares fund is the largest of the US spot Bitcoin ETFs by assets and has captured the biggest share of the roughly $52 billion in cumulative net inflows the products have attracted since launching.

The rebound came after three consecutive sessions of net outflows from Aug. 12 through Aug. 14, when the funds shed about $250 million, underscoring how sharply daily flows can swing within a single month.

Cumulative net inflows into US spot Bitcoin ETFs stood at about $52.28 billion, while total net assets reached roughly $79.3 billion.

Meanwhile, spot Ether ETFs recorded $71.5 million in net inflows on Tuesday, bringing August net inflows to about $345 million. The Ether funds began trading in the US in late July, making August their first full month of operation.

Bitcoin traded at $64,234 at the time of writing, while Ether was priced at $1,914, according to CoinGecko.