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U.S. Spot Bitcoin ETFs Record $1.039 Billion in Weekly Net Outflows

U.S. Spot Bitcoin ETFs Record $1.039 Billion in Weekly Net Outflows

U.S. spot Bitcoin ETFs posted $1.039 billion in net outflows for the week ending May 15, ending a six-week inflow streak as ARKB and BlackRock’s IBIT led withdrawals and inflation concerns weighed on risk appetite.

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Fact Check
The claim is strongly supported by multiple independent sources. The precise $1.039 billion figure is confirmed by the panewslab article citing SoSoValue data, which is the primary data aggregator for U.S. spot Bitcoin ETF flows. CoinTelegraph, crypto.news, and CryptoSlate all independently report approximately $1B in outflows for the same week ending May 15, 2026, consistent with rounding of $1.039B. The six-week inflow streak ending is confirmed by all four sources. ARKB and IBIT as the leading outflow vehicles is confirmed by panewslab/SoSoValue data (-$324M and -$317M respectively). The inflation concern narrative is directly corroborated by CryptoSlate's headline, though CoinTelegraph also cites AI stock rotation as a contributing factor. No conflicting evidence was found across any source. The minor uncertainty (5%) reflects the inability to directly access SoSoValue's live data dashboard due to a 403 error, and the slight discrepancy between the rounded $1B figure in some sources versus the precise $1.039B in the claim.
Summary

U.S. spot Bitcoin ETFs recorded $1.039 billion in net outflows during the week ending May 15, ending a six-week run of net inflows. The withdrawal period, described as spanning May 11 to May 15, marked a sharp reversal in recent fund-flow momentum. ARKB posted the largest outflow at $324 million, followed by BlackRock’s IBIT at $317 million. Despite the weekly pullback, total net assets for U.S. spot Bitcoin ETFs stood at $104.29 billion and cumulative net inflows reached $58.34 billion, indicating that longer-term demand has remained substantial even as short-term sentiment weakened. The reversal was also linked to inflation concerns, a macro factor that can pressure risk assets by shaping expectations for interest rates and liquidity.

Terms & Concepts
  • Spot Bitcoin ETF: An exchange-traded fund that holds Bitcoin directly, allowing investors to gain price exposure through traditional stock market infrastructure without directly holding the cryptocurrency.
  • Net outflows: A situation in which more money leaves an investment product than enters it over a given period, used to measure investor demand and positioning.
  • Net assets: The total value of assets held by a fund, commonly used to measure its size.