VO notes for study permit application:
...he already has a university degree in economics and is currently working as a stock trader. It is difficult to see what benefit he would gain by taking a course for a graduate certificate in Canada. There is no logical explanation as to why he has to take that course while similar opportunities exist in closer countries. I consider that this is an attempt to go to Canada with the intention of remaining there. I do not consider he is a bona fide student.''
Reasons for refusal: purpose of visit, limited employment opportunities in your country.
Previous TRV application - wanted to study short time securities related course and to visit a friend, refused-reason: purpose of visit.