BlackRock’s Bitcoin ETF Lost $165 Million in a Week. Is Wall Street Pulling Back?

BlackRock's Bitcoin ETF just shed hundreds of millions in a single week after a massive price rally, and whether that signals a Wall Street retreat or something far less alarming depends on a number you probably haven't seen yet.

Published October 18, 2026, 10:31am ET · 3 min read

The Crypto Desk desk. Editor: Sam Daodu.

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Close-up view of several gold-colored cryptocurrency coins, with a large Bitcoin symbol clearly visible on the main coin. Three black cube-shaped beads with white letters spelling 'E', 'T', and 'F' are placed on the surface of the top coin. The coins are resting on a dark, reflective surface, showing subtle reflections.
A prominent gold Bitcoin coin is topped with 'ETF' letter blocks, symbolizing the convergence of cryptocurrency with traditional Exchange Traded Funds. © 24K-Production / Shutterstock.com

BlackRock‘s (NYSE: BLK | BLK Price Prediction) iShares Bitcoin Trust (NASDAQ: IBIT) saw a significant outflow of $165.4 million for the week ending October 16, 2026, accounting for most of the $228.4 million in Bitcoin ETF outflows that week. These ETFs hold Bitcoin and trade like stocks, so a net outflow means investors withdrew more money than they invested.

This selling occurred after a strong period for Bitcoin. As of October 17, Bitcoin (CRYPTO: BTC) trades around $81,141, down 1.7% over the past week but up 6.8% over the last month. Since August 18, Bitcoin has risen 25.4% to about $64,681.

So, is Wall Street genuinely retreating from Bitcoin, or is that week’s outflow being exaggerated?

IBIT Accounted for 72% of $228 Million in Bitcoin ETF Outflows

Several golden Bitcoin coins are scattered on a dark, reflective surface in the foreground. Behind them, slightly out of focus, are three light-colored wooden block letters spelling 'ETF'. The coins and letters cast clear reflections on the glossy dark surface, creating a sense of depth and focus on digital asset investment.

24K-Production / Shutterstock.com

IBIT’s outflow accounted for about 72% of the week’s total withdrawals from Bitcoin ETFs. When a major fund like IBIT drives most of the outflow, a few large investors adjusting their positions can significantly affect the total.

Other funds also posted losses, including the Fidelity Wise Origin Bitcoin Fund (CBOE: FBTC), which lost $60.2 million; the Grayscale Bitcoin Mini Trust (NYSEARCA: BTC), which fell $7.6 million; and the Invesco Galaxy Bitcoin ETF, which lost $4.1 million. However, not all news was negative; the Morgan Stanley Bitcoin Trust took in $6.7 million, and the Bitwise Bitcoin ETF added $2.2 million, showing that some new investments are still flowing into Bitcoin ETFs during a downturn.

The trend continued into the week’s final session, when U.S. spot Bitcoin ETFs lost $82.4 million on October 16, with IBIT accounting for $71.8 million of that total.

A $228 Million Outflow Is Small Next to $104 Billion in Bitcoin ETFs

A close-up shot showing a golden Bitcoin coin, a US 100-dollar bill featuring Benjamin Franklin, and three white circular tiles with the letters 'E', 'T', and 'F' arranged horizontally. These items are placed on a red and white striped American flag with a blue field of white stars in the upper left.

MyBears / Shutterstock.com

Despite the $228.4 million outflow, U.S. spot Bitcoin ETFs held $104.3 billion in total net assets on October 16, according to SoSoValue. This means the week’s withdrawals totaled roughly one-fifth of one percent of that total, with IBIT’s share alone at about one-sixth of one percent.

BlackRock’s recent performance also tells a positive story. The firm reported $79.6 billion in assets on its digital-assets platform in its third-quarter results, including IBIT.

Notably, on a single strong day, investors put substantially more money into these funds than they pulled out over the entire week. On September 21, for example, Bitcoin ETFs attracted roughly $999 million, making that week’s outflow only about 23% of one day’s inflow.

One Heavy Selling Day Did Most of the Damage to Bitcoin ETFs

Bitcoin Cryptocurrency ETF, exchange traded funds concept

24K-Production / Shutterstock.com

The investor activity varied significantly throughout the week. Bitcoin ETFs brought in $175.6 million on October 13 but lost $261.5 million the next day. A small inflow of $5.1 million came on October 15 before the final outflow on October 16.

The significant outflow on October 14 alone surpassed the week’s total net withdrawal, suggesting a single, heavy selling session did most of the damage. Positive inflows on other days helped recover some of the losses.

Bitcoin’s price, however, seemed resilient against these sell-offs. A 1.7% drop over the week feels relatively mild given the substantial outflows, although on a longer timeline, Bitcoin is down 6.8% this year and 23.4% in the past year.

Do $228 Million in Bitcoin ETF Outflows Indicate Wall Street Is Pulling Back?

The current flow data does not strongly indicate that Wall Street is retreating from Bitcoin. A $228.4 million outflow against a backdrop of $104.3 billion in assets appears more like investors taking profits after a significant 25.4% price increase rather than a long-term pullback. Furthermore, BlackRock’s iShares platform recorded $135 billion in net inflows in the third quarter, and institutions looking to reduce risk would likely show up in these numbers first.

A real retreat would be noticeable in the data; for instance, if U.S. spot Bitcoin ETFs recorded a weekly net outflow exceeding $999 million, matching the inflow seen on September 21, and if IBIT faced a second consecutive week of losses, it could indicate a more significant retreat. Until then, the October sell-offs appear to reflect a momentary pause by investors, who still hold a substantial $104.3 billion in these funds.

Contact [email protected] for any questions or corrections.

Sam Daodu

Sam Daodu is a crypto analyst who's spent nearly a decade making blockchain understandable—no easy task when most whitepapers read like fever dreams. He writes for 24/7 Wall St., covering Bitcoin, altcoins, and crypto market analysis for investors. Before crypto, he was a tech writer (back when explaining "the cloud" was peak innovation). Since 2018, he's written for CoinTelegraph, Yahoo Finance, The Block, Cryptonews, Zypto, Rain, and more—basically anywhere people want crypto news without the headache. Sam runs MacLabs Marketing, a content agency for crypto brands tired of sounding like AI wrote their website. He also publishes free crypto education on his site for Web3 enthusiasts who think "gas fees" is a typo. When he's not writing or staring at charts, Sam's either: - Watching anime (currently convinced One Piece has better tokenomics than most altcoins) - At the gym sculpting himself into a Greek god - Listening to the music your mum warned you only bad boys listen to Connect: LinkedIn | Email | MacLabs Marketing

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