Spot Bitcoin and Ethereum exchange-traded funds (ETFs) recorded significant net inflows on March 13, 2026, signaling robust institutional demand. According to data from Farside Investors, U.S. spot Bitcoin ETFs attracted a total of $180.4 million in net new capital, marking the fifth consecutive day of positive flows. This follows a period of volatility earlier in the month, which saw outflows of $348.9 million on March 6.
BlackRock's iShares Bitcoin Trust (IBIT) dominated the inflows, capturing $143.6 million in a single session. Since its launch, IBIT has accumulated over $63 billion in assets. Fidelity's FBTC followed with $23.2 million, while Bitwise's BITB added $3.1 million. Other notable inflows included VanEck's HODL ($8.1 million) and ARK Invest's ARKB ($2.4 million). Grayscale's GBTC, Invesco's BTCO, and Franklin Templeton's EZBC reported no daily inflows.
Ethereum spot ETFs also saw growing interest, adding $26.69 million in net inflows, extending their positive streak to four days. BlackRock's iShares Ethereum Trust (ETHA) led the group with $32.39 million in inflows.
Market analysts are closely monitoring Bitcoin's technical structure following these inflows. Crypto analyst Ali Martinez noted that Bitcoin has entered a "low-resistance zone," suggesting the asset could move higher with limited selling pressure until the $82,045 level. He identified a key support floor at $66,898.
Another analyst, Michaël van de Poppe, shared a chart showing Bitcoin trading around $71,720 on the 4-hour timeframe after rebounding from earlier March lows. The chart highlights a higher-low structure forming near $65,117, which is seen as a critical support level. Poppe described the recent price action as typical end-of-week volatility and suggested that Bitcoin is likely to "attack the highs again in next two weeks," with potential resistance between $76,604 and $79,127 and a broader upside target near $80,646.
