BlackRock Adds $410M to Bitcoin ETF as Rivals Lose $295M: BTC Leads Again

Quick overview
- Bitcoin ETFs experienced significant net inflows of $114.96 million on May 15, primarily driven by BlackRock's iShares Bitcoin Trust, which alone brought in $409.72 million.
- Despite the positive overall Bitcoin ETF performance, several competitors like ARKB and FBTC faced substantial outflows totaling over $250 million.
- In contrast, Ether ETFs saw a decline with $39.79 million in outflows, led by Fidelity's FETH and Grayscale's ETHE, indicating investor caution amid macro uncertainty.
- The current market sentiment suggests continued demand for Bitcoin ETFs while Ether ETFs may struggle until new catalysts emerge.
Bitcoin ETFs had another strong day on May 15, with $114.96 million in net inflows, all thanks to BlackRock. The asset manager’s iShares Bitcoin Trust (IBIT) brought in a whopping $409.72 million, once again supporting the broader market as competitors saw big outflows.
ARKB lost $132.05 million, FBTC lost $123.66 million and GBTC lost $39.06 million. But thanks to IBIT, the overall Bitcoin ETF picture was positive.
Stats:
- IBIT inflows: $409.72M
- ARKB outflows: $132.05M
- FBTC outflows: $123.66M
- Net BTC ETF flow: $114.96M
- Total BTC ETF assets: $121.47B
- Volume traded: $2.58B
The data shows institutional confidence in Bitcoin despite short term volatility and inter-issuer churn. BlackRock is leading the way.
Ether ETFs Reverse Course with $40M Exit
While Bitcoin held strong, Ether ETFs cooled off quickly. Just days after gains, ETH funds saw $39.79 million in outflows. Fidelity’s FETH led the way with a $31.62 million exit, followed by a $16.60 million exit from Grayscale’s ETHE.
BlackRock’s ETHA brought in $8.43 million but it wasn’t enough to offset the broader weakness. Volume across Ether ETFs was $494.51 million with total assets ending the day at $8.74 billion.
This is investor caution around ETH especially with macro uncertainty and fewer catalysts than Bitcoin.
ETH ETF snapshot:
- FETH outflow: $31.62M
- ETHE outflow: $16.60M
- ETHA inflow: $8.43M
- Net ETH ETF flow: -$39.79M
- Total assets: $8.74B
BTC Sentiment is Strong, ETH is Uncertain
The flows show a bigger divide in institutional positioning. Bitcoin is still a macro hedge and BlackRock is still getting meaningful allocations. Ether’s inflow momentum was short lived and traders are taking profit or reducing risk.
This may be the flow dynamic for the short term:
- BTC ETFs will continue to get demand.
- ETH ETFs will struggle until new catalysts emerge.
- Investors are being selective, choosing stability over speculation.
As Bitcoin ETFs move closer to main stream, the road ahead for Ether will be determined by upcoming network upgrades and ETF approvals in other regions.
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