Grayscale Files Registration Forms for Polkadot and Cardano ETFs Grayscale Investments has submitted formal registration paperwork to the SEC for two new cryptocurrency exchange-traded funds. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Altcoins - @ August 31, 2025 9:15 pm