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What news came with the biggest one-day bitcoin fund money swings this year?

Research question: What were the biggest single-day swings in bitcoin fund money this year, and what news came with them?

The facts do not give a full-year ranking of 2026 swings. The largest inflow in the facts is $606.3M on August 20, 2026, led by IBIT with $503.0M, but that figure comes from the August table only 6. The July 2 inflow of $221.7M ended a 10-day outflow streak that had pulled about $2.73 billion out of bitcoin ETFs, and it came amid institutional selling tied to macro uncertainty and forced de-risking 294. The inflow also coincided with a bitcoin rebound to around $61,700 after lows under $58,000 13. The sharpest reversal in the facts was October 16, when spot ETFs posted an $82.39 million net outflow after a $5.06 million inflow the day before, with IBIT losing $71.78 million; the October 14 selling was reported alongside an inflation report, but the article cautions that flow data cannot prove the report caused it 14151719. The newest fact is dated October 16, 2026, so the coverage is very recent, while the all-time records cited ($1.4B inflow in November 2024 and $1.1B outflow in February 2025) fall outside this year 37.

Checked 2026-10-18. Only documented and supported facts are used.
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Sources

[1] supported
Bitcoin ETFs took in $221M of inflows on the day a 10-day outflow streak ended.
"Inflows Hit $221M as 10-Day Outflow Streak Ends"
Bitcoin ETF News: Inflows Hit $221M as 10-Day Outflow Streak Ends
[2] supported
U.S.-listed bitcoin ETFs took in $221.7 million on Thursday, their largest daily inflow in two months, ending a 10-day streak of outflows.
"U.S.-listed bitcoin ETFs saw $221.7 million in inflows on Thursday, their largest daily intake in two months, ending a 10-day streak of outflows."
Bitcoin ETFs draw in $221 million alongside renewed buying from long-term investors
[3] supported
The largest single-day net inflow into US spot Bitcoin ETFs on record was about $1.4B, on November 7, 2024.
"What was the biggest Bitcoin ETF inflow day ever? Nov 7, 2024, when the funds took in a net $1.4B in a single session."
Bitcoin ETF Flows Today: Net Inflows & Outflows · TFTC
[4] supported
The preceding outflows were attributed to an institutional-selling trend driven by macro uncertainty, profit-taking from earlier 2026 rallies, and forced de-risking.
"institutional-selling trend driven by macro uncertainty, profit-taking from earlier 2026 rallies, and forced de-risking."
Bitcoin ETF News: Inflows Hit $221M as 10-Day Outflow Streak Ends
[5] supported
Fidelity's FBTC drew nearly $166 million in new money on the inflow day, while BlackRock's IBIT, the largest bitcoin ETF, recorded a $40.43 million outflow.
"Fidelity’s FBTC led with nearly $166 million in new money while BlackRock’s IBIT, the largest bitcoin ETF, recorded a $40.43 million outflow."
Bitcoin ETFs draw in $221 million alongside renewed buying from long-term investors
[6] supported
The biggest single-day inflow in the August 2026 table was +$606.3M on August 20, 2026, led by IBIT with $503.0M.
"Aug 20, 2026 503.0 64.7 26.4 12.2 3.6 0.0 0.0 (3.6) 0.0 0.0 0.0 0.0 606.3"
Bitcoin ETF Flows: August 2026 — Daily Table & Net Totals
[7] supported
The largest single-day net outflow from US spot Bitcoin ETFs on record was about $1.1B, on February 25, 2025.
"What was the biggest Bitcoin ETF outflow day ever? Feb 25, 2025, when a net $1.1B left the funds in one session."
Bitcoin ETF Flows Today: Net Inflows & Outflows · TFTC
[8] supported
U.S. bitcoin spot ETFs recorded $21.13 million in net inflows on Oct. 9, 2026, ending a run of outflows.
"U.S. bitcoin spot ETFs recorded $21.13 million in daily net inflows on Oct. 9, 2026."
Two of 12 bitcoin spot ETFs draw inflows as daily intake reaches $21.13 million
[9] supported
The 10-day outflow streak that the Thursday inflow ended saw investors pull about $2.73 billion from bitcoin ETFs.
"The cumulative inflow ends a painful 10-day outflow streak that saw investors pull $2.73 billion from the funds."
Bitcoin ETFs draw in $221 million alongside renewed buying from long-term investors
[10] supported
The market had seen two straight sessions of outflows through Oct. 8, when redemptions totaled $244.13 million.
"The market had seen two straight sessions of outflows through Oct. 8, when redemptions totaled $244.13 million."
Two of 12 bitcoin spot ETFs draw inflows as daily intake reaches $21.13 million
[11] supported
Despite the one-day rebound, bitcoin ETFs still had year-to-date net outflows of about $5.4 billion.
"Even so, the year-to-date picture remains ugly, with net outflows still sitting at a hefty $5.4 billion."
Bitcoin ETFs draw in $221 million alongside renewed buying from long-term investors
[12] supported
Much of the early selling came from GBTC, the converted Grayscale trust with a 1.5% fee, as holders moved to cheaper funds.
"Much of the early selling came from GBTC, the converted Grayscale trust with a 1.5% fee, as holders moved to cheaper funds."
Bitcoin ETF Flows Today: Net Inflows & Outflows · TFTC
[13] supported
The inflow helped validate a bitcoin rebound to around $61,700 after bitcoin hit 21-month lows under $58,000 earlier that week.
"At the very least, it helps validate bitcoin’s rebound to around $61,700 after hitting 21-month lows under $58,000 earlier this week."
Bitcoin ETFs draw in $221 million alongside renewed buying from long-term investors
[14] supported
Spot Bitcoin ETFs posted a daily net outflow of $82.39 million on October 16, 2026, according to SoSoValue data.
"spot Bitcoin ETFs posted a daily net outflow of $82.39 million on October 16, 2026."
Spot Bitcoin ETFs swing to $82.39 million net outflow in one day
[15] supported
The swing came after a day of net inflows: spot Bitcoin ETFs had $5.06 million in net inflows on October 15 before flipping to outflows.
"The market returned to net outflows after recording $5.06 million in net inflows on October 15."
Spot Bitcoin ETFs swing to $82.39 million net outflow in one day
[16] supported
The largest single-day net inflow in the table was on Oct 13, 2026, when US spot Bitcoin ETFs took in a net $175.6M, led by IBIT and FBTC.
"Oct 13, 2026 65.9 103.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.7 0.0 0.0 175.6"
Bitcoin ETF Flows: October 2026 — Daily Table & Net Totals · TFTC
[17] supported
BlackRock's IBIT fund led the outflows with $71.78 million withdrawn, while Fidelity's FBTC lost $10.61 million.
"IBIT recorded $71.78 million in net outflows, while FBTC saw $10.61 million leave the fund."
Spot Bitcoin ETFs swing to $82.39 million net outflow in one day
[18] supported
Cumulative net inflows into spot Bitcoin ETFs stood at $56.88 billion at the time of this report.
"Cumulative net inflows stood at $56.88 billion."
Spot Bitcoin ETFs swing to $82.39 million net outflow in one day
[19] supported
The article cautions that flow data alone cannot prove the inflation report caused the October 14 selling.
"Flow data alone can’t prove the report caused the selling."
Bitcoin ETF Flows October 2026: Daily Data By Fund