Stock broker - solcits shares from clients and makes money based on volume of trades. Those jobs are still out there. But margins have been slashed so much it is not worth it. It is too much hussle. Trader- Trades for inhouse account or his her own account.This makes you money if you are good. If you are looking for a career in this area. Then it is called sales and trading programs. If you go to top B- schools they have programs designed for this. It might be very tough to get in. Else get a bachelors degree , enter a brokerage house in a top 5 bank and then sky is the limit.It will take couple of years to get there but you will get there. Try futuresmag.com, forex.com to know what it actually is.