Bitcoin News: Bitcoin ETFs Post Fourth Consecutive Day of Inflows — IBIT Leads With $136 Million as Weekly Total Hits $75.5 Million

US spot Bitcoin ETFs recorded $132 million in net inflows on July 17 — extending the streak to four consecutive days of positive flows — with BlackRock's IBIT leading at $136 million in a single session, according to SoSoValue data. The weekly total for Bitcoin spot ETFs reached $75.5 million while Ethereum spot ETFs outperformed with $105.5 million in weekly net inflows, per Farside monitoring data. Total Bitcoin ETF net asset value stands at $77.736 billion with a net asset ratio of 6.04% of Bitcoin's total market cap. Historical cumulative net inflows have reached $51.352 billion.
IBIT's $136 Million — BlackRock Returns to Lead the Complex
BlackRock's IBIT recording $136 million in single-day net inflows on July 17 is the most significant individual fund data point of the week. IBIT had been a notable outflow contributor during June's record $4.51 billion monthly redemption — its absence from the inflow leader board during the early July recovery sessions had been flagged as the specific gap between Fidelity and ARK leading versus the broad-based institutional re-engagement that IBIT's participation would signal. Thursday's $136 million IBIT inflow — pushing the fund's total historical net inflows to $60.49 billion — represents BlackRock's return to active accumulation mode and is the most direct confirmation yet that the institutional re-engagement extends beyond Fidelity and ARK's buyer profiles.
The $136 million single-day IBIT inflow against the $132 million total Bitcoin ETF complex inflow means IBIT was net positive while other products collectively were slightly net negative — with Fidelity's FBTC recording a $4.18 million net outflow as the only meaningful detractor. The FBTC outflow is minor at $4.18 million against IBIT's $136 million and does not change the directional picture, but it confirms that the institutional rotation within the Bitcoin ETF complex — from the Fidelity-and-ARK-led early recovery to the BlackRock-led institutional confirmation — is still in process rather than complete.

Four Consecutive Days — The Streak in Context
The four-day inflow streak — Tuesday $181 million, Wednesday $108 million, Thursday $132 million, with the daily totals fluctuating rather than declining linearly — is the longest consecutive positive flow period since April's $1.97 billion monthly inflow. The non-linear daily pattern is constructive: Thursday's $132 million arriving on a day when Bitcoin was fading from $65,000 and the chip selloff was deepening confirms that the demand is not simply tracking price momentum but reflecting genuine allocation decisions by institutional buyers who are treating the current price levels as attractive entry points regardless of short-term price direction.
The weekly total of $75.5 million is modest in absolute terms relative to April's best weeks, but the directional shift is what matters — the product category had recorded nine consecutive weeks of outflows totaling approximately $6.9 billion before this streak began. Four consecutive positive days pushing the week into positive territory represents the first sustained reversal of that trend.
Ethereum ETFs at $105.5 Million — Outperforming Bitcoin on the Week
Ethereum spot ETFs attracting $105.5 million in weekly net inflows — outperforming Bitcoin's $75.5 million — is the week's most underreported data point. ETH ETFs are newer products with a smaller institutional base than Bitcoin ETFs, meaning $105.5 million in weekly ETH ETF inflows relative to the product's AUM represents proportionally stronger institutional demand than Bitcoin's $75.5 million. BlackRock's Ethereum ETF had already been flagged as accounting for nearly all of the early-week ETH ETF inflows — Thursday's data confirms that the Ethereum institutional demand signal is both real and broad enough to outpace Bitcoin's ETF flows on a weekly basis.
Ether's relative outperformance extends beyond ETF flows — ETH remains the only major cryptocurrency holding a positive weekly return (+4% over seven sessions) as Bitcoin has faded from $65,000 toward $63,000 on the chip selloff and Iran escalation. The combination of ETH price outperformance and ETH ETF inflow outperformance suggests institutional allocators are viewing Ethereum as the higher-quality risk-adjusted position within the crypto ETF complex at current prices.
The AUM and Ratio Picture — $77.7 Billion at 6.04% of Bitcoin's Market Cap
Total Bitcoin ETF net asset value at $77.736 billion with a 6.04% net asset ratio — meaning Bitcoin ETFs collectively hold 6.04% of Bitcoin's total market cap — provides the structural context for understanding how institutional adoption has progressed. A 6.04% market cap penetration in approximately 18 months since the January 2024 launch represents meaningful institutional adoption, but it also indicates that the overwhelming majority of Bitcoin's market cap is still held outside the ETF wrapper — leaving substantial room for the ratio to grow as institutional allocators continue to build positions.
The $51.352 billion in historical cumulative net inflows represents the genuine institutional demand signal — the net capital that has entered Bitcoin through the ETF channel since January 2024 — against which the $5.4 billion in 2026 YTD net outflows represents a 10.5% partial reversal. The four-day inflow streak at $75.5 million weekly represents approximately 1.4% of the 2026 YTD outflow total being recovered — real but proportionally early in any potential structural reversal.