BlackRock's Aug. 6 SEC (U.S. securities regulator) filings show the iShares Bitcoin Trust ETF and iShares Ethereum Trust ETF swung from a combined $13.9 billion capital-share increase in Q2 2025 to a $3.5 billion capital-share decrease in Q2 2026, a $17.4 billion year-over-year reversal in the capital-share line (creations minus redemptions). IBIT logged $4.3 billion of contributions tied to issued shares and $7.2 billion of distributions tied to redeemed shares, leaving a $2.9 billion decrease, while ETHA posted $943.3 million of contributions against $1.5 billion of distributions for a $583.4 million decrease. The measure is separate from price-driven changes in net assets or investors' profits and losses, although fund operations also cut net assets by more than $7 billion for IBIT and $1.5 billion for ETHA through realized losses and unrealized depreciation. Activity tables listed 106,148 BTC and 770,839 ETH as assets sold for share redemptions, but footnotes say those figures included in-kind distributions (asset transfers instead of cash) valued at $3.85 billion and $904 million. Farside Investors' latest completed Aug. 6 tables showed an Aug. 5 inflow of $196.8 million for IBIT and $50.3 million for ETHA; across Aug. 3-5 the funds drew $478.5 million and $83.8 million, or $562.3 million combined, equal to 15.9% of $3.5 billion. If August sustained the same $187.4 million combined daily average, it would take about 19 trading sessions to accumulate a similar amount, showing why persistence over weeks is the more meaningful test.