A list of important evening developments on April 15

12:00-21:00 Keywords: OM, Nvidia, WCT, U.S. debt 1.Tether announced a strategic investment in the self-hosted crypto-wallet Fizen; 2.Trump: will accelerate the issuance of all the necessary licenses to Nvidia; 3.Former U.S. treasury secretary: the fall in U.S. debt indicates a loss of confidence in U.S. policy and financial assets; 4.GSR Markets and Flow Traders are WCT's two major market makers; 5. U.S. announces investigation into imports of chips, electronics; 6. MANTRA Associates: will release OM Volatility Event Analysis Report and OM Buyback and OM Supply Destruction Program.