Bitcoin and Ethereum ETFs: A Tale of Outflows and Market Fluctuations
In a surprising turn of events, U.S. Bitcoin and Ethereum ETFs experienced their largest outflows since November 20, 2025, with a combined loss of $582 million on Monday. This development coincides with a decline in the crypto markets, pushing Bitcoin down to as low as $85,100. But here's where it gets intriguing: Mondays seem to be a recurring pressure point for Bitcoin, as evidenced by the alignment of ETF outflows with Bitcoin's lows.
Updated on December 16, 2025, at 12:28 p.m., this news story highlights the recent movements in the crypto ETF space. According to Farside's data, Bitcoin ETFs recorded $357.6 million in outflows, the highest in nearly two weeks, while Ethereum ETFs witnessed $224.8 million exit in a three-day withdrawal streak.
Delving deeper, Velo's data reveals that Monday is the third-worst performing weekday for Bitcoin over the past 12 months. Interestingly, several of Bitcoin's major local lows have occurred on Mondays, a pattern that cannot be ignored. So, what level should we watch for potential Bitcoin support? The answer lies in the U.S. ETF cost basis, which represents the average entry price of Bitcoin held by spot ETFs. This metric, calculated using daily ETF inflows and Bitcoin's price at the time of deposits, currently sits near $83,000, according to Glassnode.
Among the Bitcoin ETFs, the Fidelity Wise Origin Bitcoin Fund (FBTC) took a hit with $230.1 million in redemptions. Other notable outflows were seen in the Bitwise Bitcoin ETF (BITB) and ARK 21Shares Bitcoin ETF (ARKB), with $44.3 million and $34.3 million, respectively. However, BlackRock's iShares Bitcoin Trust (IBIT) reported no net flows on the day. In contrast, the iShares Ethereum Trust (ETHA) accounted for the majority of redemptions from Ethereum ETFs, at $139.1 million.
And this is the part most people miss: the impact of these outflows on individual ETFs. For instance, the Fidelity Wise Origin Bitcoin Fund suffered significantly, while BlackRock's iShares Bitcoin Trust remained unaffected. Such variations highlight the importance of understanding the performance and popularity of individual ETFs in the market.
In other crypto news, the XRP ETFs have passed the $1 billion mark with no outflow days since their launch. This achievement is a testament to the growing interest and stability in the XRP market. Additionally, Filecoin's token, FIL, has experienced a decline, dropping below the $1.30 support level amid a wider market slide. The token is currently testing support in the $1.27-1.28 range, with resistance at $1.30.
As we navigate the complex world of crypto ETFs and market fluctuations, one question arises: Are these outflows a sign of investor caution or a temporary blip in an otherwise bullish market? Feel free to share your thoughts and insights in the comments below! We'd love to hear your perspective on this intriguing development.
