What are some examples of delisted securities?
OTC:ENRNQ Enron Corp originally formed in 1931 as the Northern Natural Gas Company (NYSE:NNG). In 1979 it reorganised and changed its name to InterNorth (NYSE:INI) . After the takeover of the Houston Natural Gas company in 1985, it changed its name to Enron (NYSE:ENE). In January 2002, the NYSE decided to remove Enron from the exchange, and it became an OTC security trading as ENRNQ. It was finally delisted in November 2004. See also the question below on “What happened to AT&T” for a comprehensive summary of the listings, mergers, demergers, delistings related to AT&T.