one of the things which may set a pro apart from an amateur is yield rather than money. if one trader makes 100k a year profit it has all the appearance of looking better than another trader who makes say 5k a year profit. however if the first trader has a pot size of £1M and the second trader a pot size of 10k then it shows that the second trader is producing a 50% yield whereas the guy with the large pot is only making a 10% yield. i think that the big financial firms would be more interested in hiring the guy with the best annual yield.