BlackRock's iShares Ethereum Trust ETF (ETHA) has secured 1 million ETH, valued at over $4 billion.Institutional interest in cryptocurrencies grows, ETHA emerges as a leading Ethereum ETF.ETHA becomes the first new Ethereum ETF to reach this milestone, surpassing Grayscale's ETH ETF holdings.BlackRock's Ethereum ETF reflects growing institutional confidence in Ethereum, signaling a promising future for the cryptocurrency market.