You can't really buy stock in Amtrak. All the stock is owned by the railroads that allow Amtrak to use their tracks. There are a few private owners who bought some shares from the railroads, mostly for sentimental purposes. but the stock doesn't pay dividends and doesn't trade on any stock exchange. As much as I like to see that Amtrak is improving its ridership, no one but a fool would ever buy stock in Amtrak even it was available. It's debt far exceeds its net worth and, if was was being run as a normal private company, it would be bankrupt. It's only the largess of Congress and, by implication, the American taxpayer, that keeps Amtrak alive. Until they can find a way to stop losing money on a per passenger basis, adding more trains and passengers simply means they lose more money.