Photographer: Spencer Platt/Getty Images

Discount Retailer Overstock Has New Target: Upending Wall Street

  • Company is close to issuing digital stock that uses blockchain
  • Aim is radically speeding up how long it takes to trade shares

Overstock.com Inc., which is aiming to radically change how stocks and bonds are bought and sold, is close to unveiling the first securities-trading system using the blockchain technology that makes bitcoin possible.

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