AT&T (T) was down 3.3% in midmorning trading after saying it will delay an offer to exchange its own shares for shares of AT&T Wirelessundefined, citing a paperwork error.
The telecommunications giant also said it will retain up to $3 billion of the wireless unit's stock. The exchange, which was to begin next month, is now expected to start in early April. AT&T blamed the delay on the inadvertent omission of some financial data from an electronic file transfer to the
Securities and Exchange Commission
. AT&T Wireless was down 6.1%.