Box Options Exchange, an all-electronic equity options market, has won regulatory approval to set up an open-outcry exchange in Chicago in stark contrast to the trend that has sent most trades to computers.
Box said the old-school trading style, which has become nearly obsolete in many financial markets, was better suited to large and complex deals than the liquidity generally available in electronic-only markets and would encourage participation in such trades. “We welcome this opportunity to bring additional competition to the options market, which we believe will spur further modernisation of open-outcry trading,” said Lisa Fall, president of Box Options.
https://www.ft.com/content/fc1ebbca-77cb-11e7-90c0-90a9d1bc9691