I am going to the US on holiday and would like to do some trading while I'm there. As I understand it, travelling on an Australian passport I don't need a visa as long as I am there less than 90 days. I am a self employed futures trader with accounts at IB and an Australian broker. Would it technically be illegal to make some trades whilst in the US? Has anyone else done this? Would I be asked questions entering the country with a laptop when my stated purpose was to visit for pleasure? Thanks for any feedback.