Half of adults under 25 said they would be open to investing in crypto ETNs. Credit: Brooke Cagle on Unsplash. Key Takeaways An FCA rule change will let retail investors in the U.K. access crypto exchange-traded notes (ETNs). A recent survey suggests 50% of U.K. investors aged 18–24 are interested in crypto ETNs. Reasons for their interest include being able to gain crypto exposure via tax-efficient ISAs and pension accounts. From Oct. 8, asset managers will be able to offer exchange-traded notes ...