About 7,500 traders and other employees work at Chicago's exchanges.
But with trading going on 24 hours a day, more and more traders work at night.
"Most traders are only working on consignment now, in fact."
These traders often work in the open air.
The trader still works for Morgan, although not in the same position, the official said.
He provides excellent descriptions of the nerve-racking pressure under which traders work.
Most traders in the Treasury bond market will not be working.
By the 1830s, traders and fur trappers were working in the region.
Small traders who get a licence can now work independently in Cuba.
These latter hypotheses do not seem to have a major following, but few traders work without using some of the techniques of technical analysis.