hershey=hsy on the NYSE
Nestle's main trading is on a foreign exchange (zurich), since it is a foreign company and doesnt trade as an ADR on a major exchange, so there is a 3rd market maker in the stock
Husqvarva- again trades mainly on a foreign exchange. NO ADR's listed on an exchange
illinois power -stock you refer to is a cumulative preferred 4.20% share, IPCHO and trades by appointment.
Nintendo and JSC MMC Norilsk Nickel, Swede Bank also trade mainly on a foreign exchange and you can buy the ADR's on the pinks, if you cannot buy them directly from the foreign exchange it normally trades at, as is the case with many foreign companies that do not have their ADR's listed with a major exchange.