Key Takeaways
- • US spot bitcoin ETFs recorded a net outflow of $82.41 million on October 16, 2026 (local time), according to Trader T data cited in the primary report.
- • BlackRock's iShares Bitcoin Trust (IBIT) accounted for $71.8 million of the outflow, roughly 87% of the total, while Fidelity's FBTC lost $10.61 million.
- • No net flows were recorded in Grayscale's GBTC and Bitcoin Mini Trust, Bitwise's BITB, or Ark Invest's ARKB.
- • October's cumulative net outflow has reached $614.9 million, though year-to-date the category remains in net inflows of $315.5 million.
- • The outflow followed a brief return to net inflows of $5.06 million on October 15, underscoring day-to-day volatility in flow direction.
Summary
US spot bitcoin exchange-traded funds recorded a net outflow of $82.41 million on October 16, 2026 (local time), according to Trader T data. BlackRock's iShares Bitcoin Trust (IBIT) saw $71.8 million leave the fund, while Fidelity's Wise Origin Bitcoin Fund (FBTC) lost $10.61 million. BlackRock's product accounted for approximately 87% of total net outflows for the day. Grayscale's GBTC and Bitcoin Mini Trust, Bitwise's BITB, and Ark Invest's ARKB recorded no fund movements.
The outflow lifted October's cumulative net outflow to $614.9 million. On a year-to-date basis, however, the products still hold cumulative net inflows of $315.5 million. The direction of flows has been unstable over recent sessions. On October 15, the funds posted a net inflow of $5.06 million, with IBIT attracting $16.79 million, partly offset by losses at Grayscale's BTC ($7.64 million) and Invesco Galaxy's BTCO ($4.09 million). Two days before that, on October 14, the funds recorded a net outflow of $261.46 million.
For allocators tracking spot bitcoin ETF flows, the data points to concentrated redemptions in IBIT, which has been the dominant vehicle in the category, and to a month-to-date deficit that has erased a portion of the year's gains without yet reversing them.
The outflow lifted October's cumulative net outflow to $614.9 million. On a year-to-date basis, however, the products still hold cumulative net inflows of $315.5 million. The direction of flows has been unstable over recent sessions. On October 15, the funds posted a net inflow of $5.06 million, with IBIT attracting $16.79 million, partly offset by losses at Grayscale's BTC ($7.64 million) and Invesco Galaxy's BTCO ($4.09 million). Two days before that, on October 14, the funds recorded a net outflow of $261.46 million.
For allocators tracking spot bitcoin ETF flows, the data points to concentrated redemptions in IBIT, which has been the dominant vehicle in the category, and to a month-to-date deficit that has erased a portion of the year's gains without yet reversing them.
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