Latest News and Financial Information | Reuters.com:
"From Jan. 31, 2007 it will be able to support one-, two- and three-character stock symbols for Nasdaq-listed and NYSE-listed stocks, in addition to the four-character symbols it currently uses.
The single-character stock symbol carries a degree of prestige. It is held by NYSE-listed companies such as Ford Motor Co. (F.N: Quote, Profile, Research) and Citigroup Inc. (C.N: Quote, Profile, Research) .
Nasdaq, which competes agressively against the NYSE for listings, said the symbol that a market assigns to an issuer 'should be transferable to a competing market if that issuer chooses to switch...'"