The Philadelphia Stock Exchange

As you enter the Philadelphia Stock Exchange trading floor to the left is the help desk which handles customer service, support and surveillance for the floor and for other users. Beyond the help desk is the options trading floor where index options are traded. There are approximately 250 people on the floor, says Bill Terrell, First VP of Market Operations at PHLX. "We used to have about 800 on the options floor," he adds, noting that electronic trading has reduced the need for that number of physical bodies on the floor.