I don’t know whether your statement about the price difference is true and if so, I don’t know why. Maybe different free float? My statement was about inherent value not short term price negotiations via stock exchange.
I thought about an actual attack against my argument: Stocks are just shares of companies, which sell stuff that is valuable because other people think so. Some stuff might have inherent value (because it can generate money), but in the end it still comes down to people deciding something has value. Turtles all the way down.