Spot Bitcoin ETFs Address Access, But Key Challenges Remain
By John Nada·May 7, 2026·4 min read
Spot Bitcoin ETFs have improved access for investors, but challenges in custody and advisor engagement could hinder broader adoption.
Spot Bitcoin ETFs have successfully improved access to the cryptocurrency for investors, but significant issues persist in custody, advisor participation, and operational efficiency. Senior figures from CoinShares, Calamos, ProShares, and Flow Traders highlighted these challenges during a panel discussion at CoinDesk's Consensus Miami conference, revealing that while the ETFs have opened up brokerage and advisor accounts for Bitcoin, the structural framework is still lacking.
According to Christopher Russell, head of strategic planning and analysis at Calamos Investments, the ETF market has solved a crucial access problem. The report noted that U.S. spot Bitcoin ETFs now manage around $107 billion in combined assets, yet only $12.5 billion are allocated by registered investment advisors, representing a mere fraction of the $146 trillion in advisor-managed assets under management (AUM). Russell emphasized the reluctance of advisors to introduce Bitcoin into client portfolios due to volatility concerns, coining this the '1% problem'. This concept illustrates that while advisors can theoretically allocate a small portion of a client's portfolio to Bitcoin, the practical implications of managing such a volatile asset in client discussions often discourage them from doing so.
Jean-Marie Mognetti, CEO and co-founder of CoinShares, raised alarms about the reliance on Coinbase as the primary custodian for Bitcoin ETFs, pointing out that this creates significant concentration risk. He argued that diversification is essential for risk management, as relying solely on one custodian could lead to catastrophic consequences for institutional investors. Other custodians have entered the space, yet Coinbase remains a central figure in ETF infrastructure. The growing concern surrounding custody concentration is echoed by the fact that, even as new players such as Fidelity and VanEck emerge, Coinbase still dominates the landscape, underscoring the urgency for a diversified custody approach.
Aaron Dimitri, general counsel for digital assets at Flow Traders, discussed how ETFs have transformed Bitcoin investment strategies from simple buy-and-hold approaches to more complex portfolio constructions. He noted that while the inherent volatility of Bitcoin remains, ETFs facilitate easier management of exposure, allowing institutions to build yield products and structured vehicles around the cryptocurrency. This shift marks a significant evolution in how Bitcoin is viewed within institutional portfolios. Institutions are no longer merely holding Bitcoin in a passive manner; they are increasingly looking for ways to integrate it into their broader strategic frameworks, enhancing both their growth potential and risk management.
Simeon Hyman, global investment strategist at ProShares, countered the narrative that volatility should be engineered away, arguing instead that it can enhance portfolio efficiency when Bitcoin is included alongside traditional assets. He pointed out that Bitcoin and Ether have both seen notable price increases amid global tensions, suggesting that their volatility may provide valuable diversification benefits. This perspective is critical, particularly as the market grapples with the implications of Bitcoin's volatility in a broader economic context.
The ongoing challenges in the ETF landscape come at a time of uncertain demand. Recently, Strategy, the largest corporate holder of Bitcoin, reported a significant quarterly net loss and hinted at the possibility of liquidating some Bitcoin to meet dividend obligations. This situation underscores the delicate balance of institutional strategies in the aftermath of the adoption of spot Bitcoin ETFs. The potential liquidation of Bitcoin assets by one of the largest holders could further complicate market dynamics, leading to a reevaluation of how institutional investors approach Bitcoin in their portfolios.
Looking ahead, Russell projected a bullish sentiment, predicting Bitcoin could reach $1 million within the next five years, although he acknowledged the path wouldn't be straightforward. Such projections, however, depend heavily on resolving the existing challenges in custody and advisor engagement, which remain pivotal for broader institutional adoption. The juxtaposition of high expectations for Bitcoin's future with the current hurdles facing the ETF market paints a complex picture for investors and advisors alike.
As the market evolves, addressing these structural inefficiencies will be crucial for enhancing confidence among institutional investors. Until these issues are resolved, the full potential of Bitcoin as a mainstream asset remains constrained, with significant implications for its integration into global financial portfolios. The dialogue at the Consensus Miami conference highlighted not only the progress made with spot Bitcoin ETFs but also the work that still lies ahead in managing risks and maximizing opportunities in this rapidly changing landscape.