What happened: a $626M three-day streak, carried by one fund

US-listed spot Bitcoin ETFs opened August 2026 with a three-day net inflow streak totalling about $626 million, according to Cointelegraph citing SoSoValue data. The run built session by session: $170.1M on August 3 (across seven funds), $211.5M on August 4, and a $244.4M print on August 5 — the strongest single day since late July.

The concentration underneath that number is the story. BlackRock's IBIT pulled in roughly $479 million over the three sessions — nearly 80% of the group's total — lifting its cumulative net inflows to about $61 billion, per Farside Investors data cited alongside the SoSoValue figures, and as framed by BigGo Finance.

The August 5 session showed the same shape at the fund level: IBIT took $196.8M, ARK 21Shares' ARKB $37.6M, Fidelity's FBTC $11.3M, Bitwise's BITB $10.6M and Morgan Stanley's MSBT $2.8M, while VanEck's HODL bled -$14.7M, per Bloomingbit. If you want the head-to-head on the two funds that dominate this category, our IBIT vs FBTC breakdown covers the fee, spread and liquidity differences.

Solana ETFs froze, Ether was mixed

While Bitcoin's tape rebounded, the altcoin ETF complex diverged sharply.

All six US Solana ETFs — BSOL, VSOL, FSOL, TSOL, SOEZ and GSOL — recorded zero net flows for five consecutive trading sessions ending August 4, holding cumulative flows at roughly $1.122 billion; the standstill followed a -$18.1M outflow in Bitwise's BSOL on July 28, per CryptoSlate. A literal zero across every fund for a full week is unusual — it signals authorized participants are neither creating nor redeeming shares.

Spot Ethereum ETFs stayed positive but modest, adding about $53.1M on August 4, with BlackRock's ETHA — the category's largest fund at over $5.4 billion in assets — again leading demand, per News.Bitcoin.com.

Figures: Cointelegraph/SoSoValue, News.Bitcoin.com and CryptoSlate.

What it means for investors

A $626 million headline sounds like broad conviction; a $626 million headline that is 80% one issuer is a single-fund demand curve wearing the category's name. When IBIT supplies nearly four of every five dollars of creations, the aggregate flow line tracks the appetite of one authorized-participant desk — and, as July's month-end showed, a few sessions of net redemptions from that same desk can flip the whole group negative. Breadth, not the top-line number, is what tells you whether a streak is durable.

The Solana freeze is the more mechanically interesting signal. Five straight days of exactly zero net flows across all six funds means the create/redeem machinery has effectively idled: no new shares are being minted to absorb demand and none retired to meet selling. That tends to widen the gap between an ETF's price and its underlying NAV, because arbitrageurs have less incentive to act on small dislocations — the mechanics behind that are in our NAV, premium and discount explainer, and the structural case for these products is covered in our Solana ETF staking outlook.

The practical read entering the rest of August: Bitcoin's ETF bid is real but narrow and issuer-dependent, Ether's is steady but small, and Solana's primary market has gone quiet. For the pre-market open, watch whether IBIT's creations broaden out to ARKB, FBTC and BITB — a widening base is what turns a three-day spike into a trend. None of this is investment advice; it is a flows-and-mechanics read on public data.