I think forex is a good job....................It will depend on what pair you want to trade in and what leverage you use. In case you want to trade gold in insta-forex and gold rate is 1606, you need 1606$ capital to trade a single lot at 1:100 leverage but in case of silver all you will need is 29$ for a lot at 1:100 leverage...............have a nice day........Thank you....................