Shares of cell phone makers rose Thursday, with Apple's shares increasing to a new all-time high as an analyst said he believes the company has an iPhone revenue-sharing agreement with exclusive service provider AT&T. Apple shares traded as high as $140.81 during the session. During the past year, it has traded between $72.58 and $139.98, rising sharply in recent months.

Apple Shares Set New Record on AT&T Kickback Speculation