According to a regulation by the UK Tax and Customs Authority (HMRC), starting from the new fiscal year on April 6, UK investors will no longer be able to purchase cryptocurrency exchange-traded notes (ETN) within mainstream stocks and shares Individual Savings Accounts (ISA). These products have been reclassified into the less commonly used Innovative Finance ISA, but currently no mainstream investment platform is authorized to offer both products simultaneously. Industry executives criticize this move as contrary to the promotion of a regulated cryptocurrency market and warn that it could further hinder the adoption of cryptocurrency ETNs, which already face weak demand. HMRC states that the decision aims to balance investor choice and risk management, and will be re-evaluated as the market matures to determine whether such products can be included in stock-based ISAs.