
BlackRock IBIT Leads Bitcoin ETF Inflow Streak to Six Weeks
US spot Bitcoin ETF products recorded $622.75 million in net inflows during the week of May 4-8, extending their inflow streak to six consecutive weeks. BlackRock's IBIT fund led the category, capturing the majority of new capital.
Key Takeaways
- 1## Inflow Streak Extends US spot Bitcoin ETF products drew $622.
- 275 million in net inflows for the week of May 4 to 8, marking the sixth consecutive week of positive fund flows into the category.
- 3The consistent inflow pattern suggests sustained institutional demand for exposure to Bitcoin through regulated, custody-backed vehicles.
- 4## BlackRock IBIT Dominance BlackRock's IBIT (iShares Bitcoin Trust) captured the bulk of inflows during the period, reinforcing its position as the largest spot Bitcoin ETF by assets under management since its January 2024 launch.
- 5The fund has accumulated roughly $18 billion in assets since inception, outpacing competitor products including Fidelity's FBTC and Grayscale's BTC.
Inflow Streak Extends
US spot Bitcoin ETF products drew $622.75 million in net inflows for the week of May 4 to 8, marking the sixth consecutive week of positive fund flows into the category. The consistent inflow pattern suggests sustained institutional demand for exposure to Bitcoin through regulated, custody-backed vehicles.
BlackRock IBIT Dominance
BlackRock's IBIT (iShares Bitcoin Trust) captured the bulk of inflows during the period, reinforcing its position as the largest spot Bitcoin ETF by assets under management since its January 2024 launch. The fund has accumulated roughly $18 billion in assets since inception, outpacing competitor products including Fidelity's FBTC and Grayscale's BTC.
Category Momentum
The six-week inflow streak reverses a period of mixed flows earlier in the year. The sustained inflows suggest that after the initial novelty period following the spot ETF approvals in January, institutional capital continues to view these products as a core venue for Bitcoin exposure rather than a one-time trading event.
Why It Matters
For Traders
Six-week inflow persistence signals sustained institutional demand; watch whether the pattern holds into the following week as a directional signal.
For Investors
Consistent ETF flows indicate Bitcoin is cementing its status as an institutional asset class separate from speculative retail cycles.
For Builders
Deeper institutional adoption of Bitcoin through regulated wrappers may reduce incentive for on-chain solutions targeting the same market segment.






