The U.S. Securities and Exchange Commission (SEC) announced on Sunday that it would suspend trading in the Bitcoin Tracker One and Ether Tracker One exchange-traded products issued by XBT Provider AB, a Swedish subsidiary CoinShares Holdings. The suspension will last through 11:59 PM eastern time on Sept. 20 as the regulator seeks clarity around what type of investment product the instruments are. In the initial broker-dealer application for the offering the investments are referred to as 'exchange traded funds"'while the issuer calls them 'non-equity linked certificates' in offering documents. Other public sources have created further confusion by referring to them as 'exchange traded notes.'