According to The Kobeissi Letter, Bitcoin and Ethereum ETFs now account for a record 1.6% of all US-listed ETFs by market share, doubling over the last 12 months and rising from an implied 0.2% allocation in 2023 (source: The Kobeissi Letter, Aug 14, 2025). For traders, this quantified increase highlights a growing footprint of regulated ETF exposure to BTC and ETH within the US ETF universe, offering a clear benchmark for tracking crypto’s share of traditional portfolios and market penetration over time (source: The Kobeissi Letter, Aug 14, 2025).