Bitcoin ETF Inflows Surge as BlackRock's IBIT Pulls in Nearly $600 Million in Three Days

U.S. spot Bitcoin ETFs pulled in $524.8 million on Wednesday, extending an inflow streak that began Monday to three sessions and roughly $1.07 billion, according to Decrypt's ETF tracker. That was enough to flip October positive: after shedding about $615 million through the prior Friday, the funds are now up roughly $460 million for the month. Monday's $526.7 million haul, the funds' best day since Sept. 22, came entirely from BlackRock's IBIT, the report said. The buying returned after two weeks in which the funds lost about $910 million, and it arrived alongside a fresh long-term forecast from J.P. Morgan Asset Management. Bitcoin itself fell 2.4% to about $81,470 even as the flows turned positive.

Background

The Decrypt report, dated 2026-08-20, frames the inflow streak as a reversal of a difficult stretch. Through the Friday before the streak, the spot Bitcoin funds had shed about $615 million in October; over the two weeks prior, they had lost about $910 million. Monday's $526.7 million haul was the funds' best single day since Sept. 22 and came entirely from BlackRock's IBIT, according to the report. Cumulative net inflows since launch now stand at $58.4 billion, with total net assets at $100.8 billion. The article also ties the return of buyers to a longer-horizon signal from Wall Street: J.P. Morgan Asset Management this week projected a 10% compound annual return for Bitcoin over the next 10 to 15 years in its first long-term forecast for the asset, while cautioning about 55% volatility. On the Ethereum side, the report describes a five-day outflow streak that drained about $389 million before Wednesday's $14.9 million inflow snapped it; Ethereum ETFs remain down roughly $1.07 billion for October, with cumulative net inflows of $12.8 billion. The piece also notes the Federal Reserve next meets on Oct. 27-28, with persistent inflation keeping another rate hike on the table.

What happened

According to Decrypt's ETF tracker, U.S. spot Bitcoin ETFs took in $524.8 million on Wednesday, stretching an inflow streak that began Monday to three sessions and roughly $1.07 billion. That total was enough to flip the month positive: after shedding about $615 million through last Friday, the funds are now up roughly $460 million for October, the report states. Monday's $526.7 million haul, described as the funds' best day since Sept. 22, came entirely from BlackRock's IBIT, per Decrypt. The rebound follows two weeks in which the funds lost about $910 million, and cumulative net inflows since launch stand at $58.4 billion, with total net assets at $100.8 billion. The report also notes that J.P. Morgan Asset Management this week projected a 10% compound annual return for Bitcoin over the next 10 to 15 years in its first long-term forecast for the asset, while cautioning about 55% volatility. On the Ethereum side, Decrypt reports that the funds took in $14.9 million on Wednesday, snapping a five-day outflow streak that drained about $389 million, though they remain down roughly $1.07 billion for October, with cumulative net inflows at $12.8 billion. Prices did not follow the flows: Bitcoin traded at about $81,470 on Thursday, down 2.4% over 24 hours but up 2% on the week, after hitting a weekly high near $85,000 just yesterday, the report says. Ethereum fell 2.6% to roughly $2,393, and the total crypto market cap slipped 2.9% to $2.84 trillion, with Zcash among the hardest hit in the top 10, dropping 5.6% though still up nearly 14% over seven days.

Market impact

The flow figures in Decrypt's report are the core of the story: $524.8 million into U.S. spot Bitcoin ETFs on Wednesday, about $1.07 billion over three sessions, and roughly $460 million net positive for October after a $615 million deficit through the prior Friday. Monday's $526.7 million, entirely from BlackRock's IBIT, was the best day since Sept. 22. Cumulative net inflows since launch are $58.4 billion, with total net assets of $100.8 billion. Ethereum ETFs took in $14.9 million on Wednesday, snapping a five-day outflow streak that drained about $389 million, but remain down roughly $1.07 billion for October, with cumulative net inflows of $12.8 billion. Price action moved the other way: Bitcoin traded at about $81,470, down 2.4% over 24 hours but up 2% on the week, after a weekly high near $85,000 the previous day. Ethereum fell 2.6% to roughly $2,393, and the total crypto market cap slipped 2.9% to $2.84 trillion. Zcash dropped 5.6% but remained up nearly 14% over seven days. On Myriad, a prediction market developed by Decrypt's parent company Dastan, traders give Bitcoin just a 20% chance of topping $87,500 before October ends and 9% odds of reaching $90,000, while putting the odds of a drop to $77,500 at 35%; Bitcoin already briefly slipped below $80,000 last week. Myriad users give ETH a 61.3% chance of pumping to $3,000 before dumping to $1,500.

Why it matters

The report supports a few consequences. First, the three-day buying reversed October's losses in the ETF complex, turning a roughly $615 million monthly deficit into a roughly $460 million surplus, which Decrypt frames as buyers erasing October's losses in three trading days. Second, the concentration matters: Monday's $526.7 million, the best day since Sept. 22, came entirely from BlackRock's IBIT, so the rebound rests heavily on a single issuer. Third, the flows did not lift prices, a divergence the report highlights explicitly: Bitcoin was down 2.4% at about $81,470 even as inflows accumulated, and prediction-market traders on Myriad give only a 20% chance of topping $87,500 before October ends. Fourth, the return of buyers coincided with J.P. Morgan Asset Management's first long-term forecast for Bitcoin, a 10% compound annual return over 10 to 15 years with a caution about 55% volatility, which the report presents as a vote of long-term confidence from Wall Street. Finally, the report flags the Federal Reserve's Oct. 27-28 meeting, with persistent inflation keeping another rate hike on the table, as a catalyst to watch.