The gap between Bitcoin and Ethereum’s institutional appeal widened sharply this week.
On October 3, U.S. Bitcoin ETFs absorbed an extraordinary $985 million in fresh inflows, signaling that big-money investors are once again concentrating their bets on the world’s largest cryptocurrency.
BlackRock’s iShares Bitcoin Trust (IBIT) was the driving force behind the surge, taking in more than $790 million in a single session. Fidelity, ARK 21Shares, VanEck, and Bitwise each followed with smaller but still notable inflows, while Grayscale’s converted GBTC fund trailed the group. Combined, the cohort pushed total ETF trading activity to over $7.5 billion for the day – an amount that now represents nearly 7% of Bitcoin’s entire market value.
In sharp contrast, capital flowing into Ethereum-based ETFs cooled, dropping to around $233 million. BlackRock’s ETHA fund once again dominated its category with $206 million in new entries, though most of its peers recorded weaker numbers. Even so, Ethereum’s overall ETF volume remained solid at $2.28 billion, suggesting that while institutions are momentarily cautious, retail and long-term investors are still active.
The lull in ETH products comes just weeks after a record-breaking run for Ethereum ETFs, hinting that institutions may be rotating back into Bitcoin as it approaches a new price milestone.
Bitcoin continues to hover just below its all-time high, trading around $122,700 with market capitalization surpassing $2.4 trillion. Ethereum, meanwhile, has climbed to $4,500 – its strongest level in months – with a market cap over $540 billion. Analysts argue that Bitcoin’s ETF-driven liquidity and its perceived role as a “digital reserve asset” have made it the default institutional play this quarter.
For context, the $985 million inflow on October 3 marked one of the top five single-day ETF surges since U.S. spot Bitcoin funds launched. “The numbers show confidence,” said one market strategist. “Institutions aren’t buying dips anymore – they’re buying dominance.”
With BlackRock leading the charge and Bitcoin ETFs now holding over 6% of the asset’s total supply, the line between traditional markets and crypto continues to blur. If this momentum continues, Bitcoin’s long-awaited breakout could arrive before mid-October, setting the tone for a fiery fourth quarter across digital assets.
