US spot Bitcoin and Ethereum ETFs recorded combined outflows of $2.5 billion through June 18, while emerging altcoin products Hyperliquid and XRP captured only $74 million in net inflows, according to flow data tracked by Farside Investors and SoSoValue.
Bitcoin ETFs alone lost $2.3 billion through the period, with Ethereum shedding $200 million. On June 18 specifically, Bitcoin ETF products recorded a $90.7 million outflow and Ethereum ETFs shed $12.8 million. The disparity underscores a divergence in institutional capital allocation: while major cryptocurrency assets hemorrhaged inflows, newer regulated products struggled to attract meaningful capital despite their entry into the market.
Hyperliquid ETFs Show Modest Traction
Hyperliquid ETF products, which track the on-chain derivatives venue, accumulated $189 million in cumulative net inflows across three issuers through June 18. Bitwise launched its spot Hyperliquid ETF (BHYP) on May 14, positioning it as one of the first US spot Hyperliquid products and the first to incorporate in-house staking. The product trades alongside 21Shares’ THYP and Grayscale’s HYPG.
Across approximately 25 trading sessions since launch, Hyperliquid ETFs attracted $50 million in net inflows through June 18. This represents a 46-to-1 ratio of Bitcoin ETF outflows relative to Hyperliquid inflows. Despite the nascent category’s modest asset base, the persistence of inflows during a period of broad Bitcoin ETF weakness suggests a distinct buyer base willing to allocate to the emerging product.
XRP ETFs Log Steady but Modest Demand
XRP spot ETFs, which provide regulated access to the existing holder base, accumulated $1.5 billion in cumulative inflows since mid-March, though the category logged only two negative weeks during that span. In the June 14-18 week, XRP ETFs added $10.6 million, bringing total June inflows to $24 million. The category’s net assets reached $995 million through June 18.
The $24 million in XRP inflows represents a 96-to-1 ratio of Bitcoin ETF outflows to XRP inflows. Despite the modest weekly inflows, the category’s resilience across three-plus months of trading contrasts with the acute weakness in major cryptocurrency ETF products. Solana ETFs, by comparison, posted $3.4 million in outflows through the same period.
Rate Environment Pressures Crypto Allocation
The Federal Reserve’s decision to hold its target rate range at 3.50% to 3.75% on June 17 maintained elevated short-term dollar yields, increasing the opportunity cost of volatile cryptocurrency exposure. Research from Citigroup estimates that spot Bitcoin ETF flows account for approximately 45% of weekly Bitcoin price movements, underscoring the structural importance of institutional capital flows to the market.
Bitcoin ETF products posted negative flows in 11 of 14 trading sessions during June through June 18, indicating sustained institutional selling pressure. The concentration of outflows in major assets relative to inflows in emerging products reflects a broader reallocation away from established cryptocurrency exposure toward either traditional assets or selective exposure to newer venues and tokens.
