So, here is what you need to know: 1. It's still a federal crime in the US, these companies ARE NOT legal, despite being listed on exchanges, and you really can get a lifetime ban on entering the US for merely being an investor. It's seriously fucked up but that's what it is. 2. The Canadian guy who got banned for life was found out by DHS because he gave interviews in the media about being an investor. That's how they found out he owned the stock. 3. The odds they will find out you held a pot company in your retail investing account are very low unless you are dumb enough to tell them. They aren't hooked up to your brokerage and would probably need a search warrant from a judge to find out what you have. 4. Don't be a fucking idiot and confess to anything related to pot at the border. Don't admit to ever having used it, bought it, invested in it. You can be banned for admitting it to a border officer so just don't do that. 5. Don't cross the border with a list of your investments or copies of your brokerage statements in your phone or laptop or in the email account connected to your phone or laptop, they could search that at the border without a warrant and find evidence of your pot stock ownership 6. If you have a visa interview coming they could in theory RFE to ask for your investment account statements to see what you have and that could put you in a bad spot if recent transactions show you own a pot stock. I have never heard of them doing this but it's Trump days, so they could start doing something like this just to make life harder for immigrants. As of now though I have never heard of them doing this. It seems unlikely they will catch you so you are probably safe to travel as a pot investor so long as you don't say anything stupid at the border or carry evidence of your pot stock ownership with you. Still. I am avoiding these investments just because in the very unlikely case that they might find out it's a very bad situation: Lifetime ban on entry to the US.
Or, be a US citizen and not worry about any of this
Tell that to all the black people you lock up for minor weed offenses within the country. Dumbass.
Tell them to not travel while investing in pot companies? How will that help them? Are you an NPC?