The Block data shows that inflows into the Ethereum ETF accelerated significantly in December, reaching $1.66 billion, accounting for 74% of the total $2.24 billion inflows since its inception. Among them, BlackRock's iShares Ethereum Trust (ETHA) led the way, with inflows reaching a single-day high of $292 million on December 5. Fidelity's FETH is the second most popular choice, although it typically has lower inflows compared to BlackRock's products. Investor interest from other ETH ETF providers is relatively muted, in contrast to the distribution of inflows into Bitcoin ETF products. Total assets under management across all Ethereum ETF products are currently around $11 billion.