Spot Bitcoin ETFs Lead With $433 Million in Net Inflows

Spot Bitcoin ETF products recorded $433 million in net inflows on Sept. 18 (ET), the larger of the two reported totals for the session. The figure reflects net flows across the U.S. spot Bitcoin ETF complex for that single trading day. For related coverage, see 3 New ETFs Target Small-Caps, Bitcoin, and a Cathie Wood Buffer.

The Sept. 18 result continues a pattern of positive Bitcoin ETF flow days that has drawn sustained attention from market observers. On a prior session, Bitcoin ETFs added $100 million while Solana, XRP, and Ethereum ETF products were in the red, underscoring how unevenly inflows can be distributed across the asset class on any given day. For related coverage, see Top Crypto News Aug 26: XRP Rebounds 32% as ETF Inflows and Whales Return.

Spot Ethereum ETFs Add $144 Million as Combined Inflows Reach $577 Million

Spot Ethereum ETFs recorded $144 million in net inflows on Sept. 18 (ET), bringing the combined one-day total across both product categories to $577 million. Bitcoin ETFs accounted for roughly 75% of the combined figure, with Ethereum funds making up the remaining 25%.

The $144 million Ethereum result is notable in context: on a single day earlier in September, Ethereum ETFs drew $226 million, nearly matching Bitcoin’s haul for that session. The Sept. 18 figures show a wider gap between the two, with Bitcoin pulling three times the Ethereum total. On a weekly basis, the trend has shown Ethereum ETFs pulling in $713 million against Bitcoin’s $884 million, suggesting the gap can narrow considerably when aggregated over multiple sessions.

What the Sept. 18 ETF Flow Figures Show

KEY POINTS

  • Spot Bitcoin ETFs recorded $433 million in net inflows on Sept. 18 (ET)
  • Spot Ethereum ETFs recorded $144 million in net inflows on the same session
  • Combined net inflows across both product types totaled $577 million for Sept. 18 (ET) only

Both spot Bitcoin and spot Ethereum ETF products posted positive net inflows on Sept. 18 (ET), meaning more capital entered these funds than exited across the session. The figures reflect one trading day and do not indicate a multi-day trend on their own. Flow data for both products is tracked daily by The Block’s ETF flow dashboards.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.