Spot Ethereum exchange-traded funds (ETFs) have experienced a notable surge in inflows, reaching a record 19-day streak with cumulative inflows nearing $1.4 billion as of mid-June 2025. On June 11, Ethereum ETFs generated $125 million in inflows, marking their best daily performance since early February. The momentum accelerated on June 12, with $240 million flowing into spot Ethereum ETFs, surpassing Bitcoin ETFs, which recorded $164 million in daily inflows. This trend reflects a rotation of institutional capital favoring Ethereum due to its perceived undervaluation, decentralized finance clarity, and post-upgrade momentum. Ethereum ETFs extended their inflow streak to 19 days, adding $112.3 million on June 13, led by BlackRock's ETHA fund contributing $101.53 million. Over the same period, Bitcoin ETFs also saw inflows, with $86.3 million added on June 13 and a four-day consecutive inflow streak, supported by BlackRock's IBIT fund, which pulled in $288.33 million. BlackRock has been aggressively accumulating Bitcoin, purchasing approximately 2,272 BTC on June 14 and acquiring $1.1 billion worth of Bitcoin throughout the week. The asset manager now owns about 3% of the total Bitcoin supply and manages $11.5 trillion in assets. BlackRock has indicated that financial advisors overseeing $100 trillion in assets are preparing to increase allocations to Bitcoin, signaling growing institutional confidence. Despite the strong inflow streak, spot Ethereum ETFs ended their 19-day inflow run on June 14 with a modest outflow of $2.2 million. Market analysts suggest that these ETF inflows could precede bullish breakouts for both Ethereum and Bitcoin prices, highlighting a transition of cryptocurrencies into structured macro assets and hedge roles in investment portfolios.