Check out which companies are making headlines after the bell Wednesday:
Apple - The tech firm said it was working on a fix issues with its new mobile-payment system that mistakenly duplicated about 1,000 Bank of America debit transactions. Apple shares were little changed in after-hours trading.
AT&T - The wireless carrier posted third-quarter earnings per share of 63 cents on revenue of $32.96, versus expected EPS of 64 cents on $33.25 billion in sales. It also cut its full-year forecast. Its shares declined in after-hours trading.
Select Comfort - The mattress maker jumped in after-hours trading after reporting its quarterly profit increased 16 percent.