Internet retail titan Amazon on Thursday reported a money-losing quarter despite impressive growth in sales, sending shares diving.
The Seattle-based firm said that it had a net loss of $126 million in the quarter that ended June 30, widening the deficit from $7 million in the same period a year earlier.
Sales, meanwhile, climbed to $19.34 billion in a 23 percent rise from the second quarter of last year.
The loss came as Amazon poured money into a new Fire smartphone, original programming for its Prime subscription service, drone package delivery and more.
"We continue working hard on making the Amazon customer experience better and better," Amazon founder and chief executive Jeff Bezos said in the earnings release.
He rattled off a list of recent Amazon product or service introductions that included improved delivery operations in the US and Europe; a streaming music service, and Kindle Unlimited all-you-can-read book subscriptions.
"I feel like this is 'Groundhog Day' over and over again," Forrester analyst Sucharita Mulpuru said, comparing Amazon earnings to a Bill Murray comedy film about a man perpetually reliving the same day.
"I don't know how much longer it can keep going."
Mulpuru was skeptical of the argument that Amazon is investing heavily for the future, noting that Google and Apple pour money into innovation but manage to make profit along the way.
"Apple created the iPad; Google has Fiber, Glass and driverless cars and they are still pulling profit," Mulpuru said.
"So what is Amazon's excuse?"
The analyst suspected that Amazon was actually investing in shipping systems, dynamic pricing algorithms, and cutting prices to grab market share in moves "effectively decimating a lot of retailers."
Investors betting on Amazon gaining a near monopoly and then jacking prices will likely be disappointed, the analyst reasoned.
Regulators would likely weigh in under those circumstances, and major retail players such as Wal-mart won't go quietly into that good night, Mulpuru said.
Amazon shares plunged more than eight percent to $329.50 in after-market trades that followed release of the earnings figures.
Amazon forecast that its sales would continue to grow impressively this quarter, climbing from 15 percent to 26 percent to as high as $21.5 billion when compared with the prior year.
The online retailer expected its operating loss to widen, possible to as much as $810 million in contrast to a $25 million operating loss logged in the third quarter of last year.