Shares of AT&T dropped as much as 4 percent Wednesday as two of its telecom rivals reported surges in subscribers.
Shares of telecom giant AT&T stumbled Wednesday after rivals T-Mobile and Verizon crushed expectations for new subscribers.
Growth by competitors raises questions about whether AT&T can top expectations, too.
AT&T's stock fell as much as 4 percent Wednesday and was down about 2 percent as of noon ET.
Shares are down 19 percent year over year.