The last stand against the march of computerized trading

Electronic trading dominates market volume these days.
It is thought that more than 50% of all stock trading volume and more than 80% of CME Group volume comes from trades completed on the screen.
But Craig Donohue, executive chairman at The Options Clearing Corporation who was CEO of the Chicago Mercantile Exchange when electronic trading became all the rage, says there are some markets where electronic trading probably wouldn't work.
"That's becoming less and less the case, but I mean certainl