Shares of Stablecoin Development Corp surged tenfold in a few weeks, with its market capitalization briefly increasing from approximately $50 million to $500 million. Today, the stock price reached $10 before falling to $4.5. The company's primary business is earning interest through USDS. Tether is its main investor and holds warrants that will become exercisable in mid-October. Stablecoin Development Corp has filed with the U.S. Securities and Exchange Commission (SEC), stating it is unaware of the reasons for the unusual stock price increase and "does not believe that corrective action is appropriate."