US spot Bitcoin ETFs suffer their worst week in a year…$1.33bn in outflows

US spot Bitcoin exchange-traded funds (ETFs) saw a sharp exodus of capital. Net outflows totaled $1.33bn over the past week, marking the weakest weekly performance since February 2025.

According to The Block on the 24th (local time), US spot Bitcoin ETFs posted net outflows of $1.33bn based on data tallied through Jan. 23. Despite the trading week being shortened to four days due to Martin Luther King Jr. Day, heavy withdrawals were concentrated during the period. The prior week saw the opposite trend, with $1.42bn in net inflows.

Outflows were concentrated early in the week. As much as $709m exited on Wednesday alone—the largest single-day outflow of the week—while Tuesday also recorded $483m in net outflows. The pace then moderated somewhat on Thursday and Friday, with outflows of $32m and $104m, respectively.

BlackRock’s iShares Bitcoin Trust (IBIT) recorded net outflows throughout the week. IBIT saw the largest withdrawals on Tuesday and Wednesday, contributing to the broader increase in total outflows. IBIT’s net assets stand at about $69.75bn, holding roughly 3.9% of the total Bitcoin supply.

Spot Ether ETFs also failed to avoid weakness. Over the same period, Ether ETFs saw total net outflows of $611m, including $298m on Wednesday alone. This contrasts with net inflows of $479m the previous week.

By contrast, the Solana (SOL) spot ETF recorded net inflows of $9.6m, showing relative resilience. The XRP ETF posted weekly net outflows of $40.6m, but regained part of the decline as some funds flowed back in toward the end of the week.

Market participants say the deterioration in ETF flows is coinciding with a price-correction phase. CryptoQuant, an on-chain data analytics firm, said in a recent report that “Bitcoin holders have begun realizing net losses for the first time since October 2023,” adding that the current market structure resembles the early stage of the bear market during the transition from 2021 to 2022.