Price war in U.S. mobile market raises fear of profit hemorrhage

By Sinead Carew

NEW YORK, Jan 11 (Reuters) - New Year's rivalry among U.S. mobile operators has Wall Street worried that the industry's profits could seriously decline.

After months of aggressive moves by T-Mobile US to lure customers from other carriers, No. 2 operator AT&T Inc counterattacked on Jan. 3 by offering to pay consumers to switch from T-Mobile. Days later, No. 3 ranked Sprint Corp promised big discounts for family and friend groups. On Wednesday T-Mobile upped the ante, saying it would pay hefty exit costs for converts.

The moves by Sprint and AT&T come after No. 4 U.S. operator T-Mobile, a long-time industry straggler, was able to report three full quarters of customer growth after four years of losses.

The intensifying competition is a new challenge to a U.S. industry long used to imposing its will on consumers, and analysts fear it could result in the loss of billions of dollars of revenue.

Investors had hoped AT&T and market leader Verizon Wireless would be able to shrug off T-Mobile's moves, since they already control about two-thirds of the market. AT&T had previously said that T-Mobile's efforts only concerned the most cost-conscious customers, who are not its or Verizon's primary targets.

AT&T stayed on the sidelines for months in the face of public criticism of its services from T-Mobile's outspoken chief executive officer, John Legere. Now that the company is fighting back, even industry leaders could face tighter margins, say analysts.

"The most disappointing thing is that AT&T is reacting to T-Mobile," said Jefferies analyst Michael McCormack. "How long is it before Verizon reacts?"

While AT&T did not change its service rates, it is offering customers a $200 credit to switch to its network.

The company is the easiest target for T-Mobile, which it tried to buy in 2011, since they use the same technology, so it is simple for customers to switch between services.

Their battle got more personal at the Consumer Electronics Show in Las Vegas when AT&T kicked Legere out of its party, a concert featuring rapper Macklemore.

At T-Mobile's own event, Legere, sporting his customary pink company tee-shirt under a leather jacket, took to the stage to make fun of AT&T and its executives in a profanity-sprinkled speech.

Roe Equity Research analyst Kevin Roe sees the "unhealthy market dynamic" getting worse, since he is not convinced AT&T's incentives to T-Mobile switchers will end there.

"There's more to come, and it will continue until AT&T has market-share stability," said Roe, who believes the carrier will keep going until it can ease customer losses to T-Mobile.