tenet healthcare corp thc shares dropped in the extended session thursday after the hospital operator forecast an outlook that came up short of wall street expectations while announcing a share buyback program tenet shares fell 21 after hours following a 02 decline in the regular session to close at 5432 tenet forecast adjusted earnings of 1 to 154 a share on revenue of 482 billion to 502 billion for the fourth quarter and 588 to 642 a share on revenue of 19 billion to 192 billion for the year analysts surveyed by factset had estimated 180 a share on revenue of 504 billion for the fourth quarter and 638 a share on revenue of 1927 billion for the year the company reported thirdquarter net income of 131 million or 116 a share compared with 449 million or 413 a share in the yearago period adjusted earnings which exclude stockbased compensation expenses and other items were 144 a share compared with 199 a share in the yearago period revenue declined to 48 billion from 489 billion in the yearago quarter analysts had forecast 124 a share on revenue of 481 billion tenet also announced a 1 billion sharebuyback program