tZERO launches second digital securities traded on professional securities ATS

According to CoinDesk, on June 28th, American online retailer Overstock subsidiary tZERO announced that the digital voting series A-1 preferred stock is the second tradable digital security of its securities trading system PRO Securities. It is online under the name OSTKO (formerly OSTKP) and can be used in non-exchange locations where the buyer and seller of the transaction match. The location is supported by tzero's securities token trading technology.