Spot Bitcoin ETFs post seven-day inflow streak, BlackRock leads

U.S. spot Bitcoin exchange‑traded funds logged a seven‑day inflow streak that totals $499 million, the strongest weekly run in 11 weeks, driven largely by BlackRock’s iShares Bitcoin Trust (IBIT) which alone pulled in $319 million this week【1】.

Inflow dynamics and fund composition

The inflow surge began after a $424.66 million outflow on July 13, the month’s biggest single‑day withdrawal. Subsequent days saw investors add $181.08 million (July 14), $107.80 million (July 15), $79.15 million (July 16), and $132.30 million (July 17). The peak came on July 20 and 21, with $226.92 million and $203.14 million respectively, coinciding with Bitcoin trading above $66,000 amid reports of a potential regulatory clearance linked to the CLARITY Act【1】. The streak’s weakest day was July 22, with only $68.99 million added.

Across all 13 spot Bitcoin ETFs, the funds now hold roughly 6 % of the total Bitcoin supply, with IBIT alone representing about 3.70 % of every coin in existence【1】. By contrast, the other twelve ETFs together account for 2.38 % of the supply. In terms of trading activity, IBIT processed $871.32 million of the $1.11 billion that changed hands across all funds on July 22【1】.

Market context and fee competition

The inflow streak marks the first month of net inflows since April, with $699.22 million added in July so far. However, June saw $4.51 billion withdrawn, meaning July has only recovered about 15 % of that loss【1】. The overall net outflow for 2026 remains $4.76 billion, indicating that while the recent buying is concentrated in IBIT, broader fund flows are still negative.

Fee differentials appear to influence investor preference. IBIT charges a 0.25 % expense ratio, while Fidelity’s FBTC charges nothing but holds significantly less capital ($11.38 billion vs. IBIT’s $48.86 billion)【1】. Grayscale’s GBTC, with a 1.50 % fee, drags down the average cost across the sector.

What to watch

• Bitcoin price levels around $66,000 and any movement above or below this threshold, which has historically aligned with large ETF inflows.
• Upcoming fund flow reports for the week ending July 29, to see if the inflow momentum sustains or reverses.
• Any regulatory updates related to the CLARITY Act or other Bitcoin‑related legislation that could affect investor sentiment.

The seven‑day inflow streak shows that spot Bitcoin ETFs can attract sizable capital quickly, but the sector’s overall net outflows and fee competition suggest that sustained inflows will require broader market confidence and possibly lower expense ratios.