Weekly Outflow Overview: $1.79 Billion Net Outflow, Third Highest on Record
According to data from SoSoValue, Bitcoin spot ETFs recorded a net outflow of $1.79 billion over the five trading days from June 22 to June 26 (Eastern Time), marking the third-largest weekly outflow since the product's inception. The two previous higher weekly outflows occurred in early November 2025 (amid market panic following the FTX saga) and mid-March 2026 (after hawkish Fed comments triggered a sell-off in risk assets). This week's outflows were concentrated in the largest funds, reflecting a short-term risk-off sentiment among institutional investors.
Performance by Major ETFs: BlackRock IBIT Leads Outflows; Grayscale Mini Trust Defies Trend
The ETF with the largest weekly outflow was BlackRock's IBIT, which saw a net withdrawal of $1.303 billion. IBIT's cumulative net inflow still stands at $60.770 billion, maintaining its position as the largest Bitcoin ETF by assets. Fidelity's FBTC followed with a net outflow of $315 million, bringing its historical net inflow to $10.140 billion. Notably, Grayscale's Bitcoin Mini Trust (BTC) bucked the trend, recording a net inflow of $71.701 million, signaling investor preference for lower-cost structures. Grayscale's GBTC product also experienced a modest outflow of approximately $110 million during the same period.
Total Assets and Market Share: ETF Net Asset Ratio at 6.08%, Cumulative Inflows at $51.61 Billion
As of press time, the total net asset value of Bitcoin spot ETFs stands at $72.82 billion, representing 6.08% of Bitcoin's total market capitalization (net asset ratio). Historical cumulative net inflows have reached $51.61 billion. Despite the significant weekly outflow, the overall market penetration remains healthy, with analysts viewing the pullback as a normal adjustment within a longer-term institutional accumulation trend.

