Deep Tide TechFlow News, on December 19, Grayscale announced that its Grayscale Sui Trust is now open to qualified investors, providing investors with exposure to SUI token investments. This product is one of the first securities to be fully invested in SUI tokens and derive value from its price, allowing investors to gain exposure to SUI in a securities format without the need to directly purchase and store tokens. CoinDesk SUI Reference Rate will provide a USD-denominated spot reference price for the trust, calculated using real-time data from multiple trading platforms.