BlackRock IBIT Leads Bitcoin ETF Inflow Streak

US spot Bitcoin ETF products drew $622.75 million last week, their sixth straight week of net inflows.

US spot Bitcoin ETF products drew $622.75 million in net inflows during the week of May 4 to 8, extending the streak to six consecutive weeks of positive flows. SoSoValue tracked the figures on May 11.

BlackRock’s IBIT dominated the period with $596 million in net inflows. Grayscale’s GBTC was the notable exception, posting $62 million in net outflows over the same stretch. IBIT’s cumulative total now stands at $66.1 billion.

The current run is the longest inflow streak for US spot Bitcoin ETF products since seven consecutive weeks between June and July 2025. Over the six weeks starting April 2, the funds have together absorbed nearly $3.4 billion in fresh capital.

The strongest week of the run came in mid-April at $996.38 million. Last week’s $622.75 million was the second-highest total of the streak. Bitcoin traded between $80,000 and $82,000 during the period before stabilising near $80,800 by the weekend.

Spot Ethereum ETFs drew $70.49 million over the same week, while spot Solana ETFs took in $39.23 million and spot XRP ETFs attracted $34.21 million.

Institutional positioning and context

The six-week run follows sustained institutional demand that has seen IBIT absorb the overwhelming majority of industry flows throughout 2026. IBIT captured 73% of Bitcoin ETF inflows during the week of January 12 to 16, a pattern that has continued across successive reporting periods.

Quantix Finance CEO Jake Seltzer told analysts this week that “the market is entering a phase where liquidity is becoming more selective rather than purely speculative,” pointing to the inflow data as a sign of structural institutional rotation into Bitcoin.