Spot Bitcoin ETFs see $241M in net inflows for third straight week

US spot Bitcoin ETFs pulled in $241 million in net inflows for the trading week ending October 2, 2026. That makes three positive weeks in a row.

The headline number hides a lopsided week. BlackRock's iShares Bitcoin Trust (IBIT) took in $450 million on its own, according to data compiled largely from SoSoValue, with additional tracking by Farside Investors.

That brings IBIT's cumulative figure to $65.73 billion. It remains the clear heavyweight of the group, and this week it outperformed the entire category's net total by a wide margin.

ARK 21Shares' ARKB added a more modest $25.52 million. The fund's cumulative total now sits at $1.4 billion.

Fidelity's FBTC had the opposite experience. It posted the largest outflows of the week, shedding $168 million, though its cumulative asset base still stands at $10.9 billion.

Do the arithmetic and something stands out. IBIT and ARKB together brought in more than the week's net total, even after FBTC's losses, which implies the remaining funds were net negative as a group.

Total net assets across all spot Bitcoin ETFs reached approximately $108.89 billion. That figure represents 6.42% of Bitcoin's total market capitalization.

Cumulative net inflows since the funds launched in January 2024 now total approximately $57.79 billion.