Bitcoin ETFs Draw $853.5M in Five-Day Inflow Rally

U.S. spot Bitcoin ETFs post five straight days of inflows

U.S. spot Bitcoin ETFs registered a sustained inflow run from Aug. 3 through Aug. 7, collecting roughly $853.5 million across five trading sessions. The inflows marked a sharp reversal after the prior week’s net outflows and accelerated August demand, making the month’s opening week already far stronger than July’s full-month results.

Daily inflow breakdown and weekly swing

According to SoSoValue estimates, the funds began the week with $170.10 million in net purchases on Aug. 3, followed by $211.50 million on Aug. 4. The largest single session came on Aug. 5 with about $244.40 million, then $128.80 million on Aug. 6 and $98.85 million on Aug. 7. Together, those five days produced roughly $853.5 million in net inflows — a swing of roughly $915 million from the previous week, when the category experienced about $61.5 million in net outflows.

BlackRock leads demand as category inflows concentrate

BlackRock’s IBIT dominated the inflow trend, accounting for the lion’s share of new capital over the five sessions. IBIT is estimated to have attracted around $693 million during the period — approximately 81% of total Bitcoin ETF net inflows. On Aug. 7 alone, IBIT added an estimated $86.71 million.

Other ETFs also registered positive contributions: Fidelity’s FBTC took in about $40.95 million over the five days, while Bitwise’s BITB and ARK 21Shares’ ARKB saw more modest inflows of roughly $2.11 million and $1.94 million, respectively. These inflows offset withdrawals from several funds, including Invesco and Galaxy’s BTCO (about $19.37 million withdrawn), VanEck’s HODL ($10.55 million), and Hashdex’s DEFI ($2.94 million).

Assets under management and historical context

By the close of Aug. 7, total spot Bitcoin ETF assets were approximately $79.50 billion, equal to about 6.10% of Bitcoin’s market capitalization. Cumulative net inflows into the spot Bitcoin ETF complex since launch stood near $52.18 billion, and the products generated about $1.57 billion in average daily trading value during the period cited. Notably, August’s inflows through the first five trading days were already nearly five times July’s total of about $172.4 million.

Ethereum ETFs also see strong week, adding $244.9M

Spot Ethereum ETFs attracted meaningful capital alongside Bitcoin funds, taking in about $244.9 million from Aug. 3–7. The week began with an $11.42 million outflow but flipped to inflows of $53.75 million on Aug. 4, $60.86 million on Aug. 5, $92.15 million on Aug. 6 and $49.60 million on Aug. 7.

BlackRock’s ETHA drives most Ethereum demand

BlackRock’s ETHA led the Ethereum ETF inflows, contributing sizable daily allocations — around $50.34 million on Aug. 5, $81.14 million on Aug. 6 and $38.15 million on Aug. 7. Total net assets for spot Ethereum ETFs reached roughly $10.74 billion, representing about 4.65% of Ether’s market capitalization. Combined, Bitcoin and Ethereum ETFs pulled in nearly $1.10 billion across the two spot categories during the week.

Smaller crypto ETF segments see muted flows

Other crypto ETF categories showed limited activity. HYPE funds posted small positive flows, with roughly $1 million on Aug. 5 and $2.84 million on Aug. 6. XRP-focused ETFs ended the week slightly negative after a $3.58 million withdrawal on Aug. 5 offset a $1.15 million inflow on Aug. 3. Solana ETFs were essentially flat, seeing about $1 million on Aug. 4 offset by a $859,500 withdrawal on Aug. 6. These patterns underline that regulated investment demand remains primarily concentrated in Bitcoin and Ethereum.

Price context and market interpretation

Despite strong ETF inflows, Bitcoin traded below the $65,000 level through the week. ETF buying helped support the $64,000 area but did not trigger a confirmed technical breakout. Market participants will be watching whether continued institutional allocations to spot Bitcoin and Ethereum ETFs translate into broader price momentum or remain an incremental support for crypto markets.

What to watch next

Key variables to monitor include ongoing daily ETF flows, reallocations among issuers (particularly between dominant providers such as BlackRock and Fidelity), and macro drivers that can influence risk appetite. Additionally, flows into niche crypto ETFs and the reaction of spot prices to sustained institutional demand will be critical for traders and longer-term investors alike.

As the ETF ecosystem matures, weekly flow trends will remain a valuable indicator of institutional interest in spot crypto exposure and may increasingly influence short-term price dynamics across the digital-asset market.