To me, people in the U.S are Americans, and people in Canada are Canadians. I'd think it's the same as referring to everyone from an Asian country as 'Asian' and nothing more.
Im sad for people like this. "I invested in a company and I don't know what the fuck it does" is what screws people over. If you don't even know how to use SEC.gov, get your ass away from stocks and save your money.