AT&T is trading 4.4% down now at $22.39 in pre-market trading, despite reporting third-quarter results that beat analyst estimates and a raised full-year adjusted EPS outlook. The decline is attributed to: * A miss in wireless postpaid phone net additions, with 379,000 subscribers added, falling short of analyst estimates. * A $2.6 billion non-cash impairment charge related to the sale of its Mexico wireless unit. * The broader market context was stable or positive, indicating the decline is company-specific.