U.S. Bitcoin and Ethereum Spot ETFs Record $568M and $23.5M Weekly Inflows as Nasdaq Lifts BTC ETF Limits

U.S. spot Bitcoin ETFs recorded net inflows on three days last week totaling $568 million, bringing total assets under management to $87.07 billion, while U.S. spot Ethereum ETFs saw net inflows on two days totaling $23.5 million and held $11.28 billion in assets, Farside Investors data show. Nine U.S. Bitcoin spot ETFs posted net inflows over the week, led by IBIT with $660 million, BTC with $46 million, and EZBC with $22.5 million, while six U.S. spot Ethereum ETFs registered net inflows primarily from Grayscale's ETHE, which added $138 million. In Hong Kong, Bitcoin spot ETFs recorded no net inflows last week with total net asset value at $274 million, while Ethereum spot ETFs saw net outflows of 497.74 ETH and held $65.92 million in net assets, according to SoSoValue. As of March 6, U.S. Bitcoin spot ETF options posted $1.01 billion in total notional volume with a long-to-short ratio of 1.49, notional open interest of $25.04 billion as of March 5 with a long-to-short ratio of 1.54, and implied volatility at 53.97%, with SoSoValue noting weaker short-term trading activity but overall bullish positioning.