Amazon will roll out updates for its first tablet, the Kindle Fire, in about two weeks.
Amazon will roll out updates for its first tablet, the Kindle Fire, in about two weeks. Reuters/Shannon Stapleton

Amazon.com Inc warned of a possible operating loss in the first quarter following a sharp drop in fourth-quarter profit, a sign that the online retailer is continuing to spend heavily on expansion and new ventures at the expense of shorter-term profits.

Shares of the company fell more than 9 percent.

Amazon forecast first-quarter operating results ranging from a loss of $200 million to a profit of $100 million, below Wall Street expectations.

Amazon has been growing at least twice as fast as the e-commerce sector in recent years. To keep up that pace, the company is expanding into new categories and regions, spending heavily on growth and crushing profit margins.

Amazon's first-quarter forecasts suggest the company may continue this heavy investment.

The wide range reflects the investments that we're making, Amazon Chief Financial Officer Tom Szkutak told reporters on a conference call. We have a lot of opportunities to invest in .... You're seeing more of that in Q1.

Amazon forecast first-quarter revenue of $12 billion to $13.4 billion. Wall Street was looking for $13.4 billion, according to Thomson Reuters I/B/E/S.

Amazon shares dropped 9.5 percent to $175.84 in after-hours trading following the results.

Amazon is not a cheap stock, so any type of disappointment, we typically see a pretty meaningful reaction by the market, James Lee, analyst at Credit Agricole, said.

Amazon shares have fallen more than 20 percent since hitting a record in October, partly on concern about how much the company is investing.

Amazon is spending in three main areas: fulfillment centers to support its online retail business; content for video streaming and other media businesses; and technology infrastructure for its cloud computing service.

One of Amazon's latest ventures is the Kindle Fire tablet computer, which some analysts estimate the company is selling at break-even or at a small loss.

On Tuesday, Amazon said sales of all types of Kindle devices, including cheaper e-readers, jumped 177 percent over the nine-week holiday period ending Dec 31, versus the same period a year earlier.

Amazon CFO Szkutak said Tuesday that he was very encouraged by the early spending habits of Kindle Fire owners, who are buying more digital content such as e-books, video, music and apps.

Amazon said fourth-quarter net income was $177 million, or 38 cents per share, down from $416 million, or 91 cents per share, a year earlier.

Revenue came in at $17.43 billion, up 35 percent from the fourth-quarter of 2010.

Amazon forecast first-quarter operating results ranging from a loss of $200 million to a profit of $100 million. That includes about $200 million for stock-based compensation and other expenses.

Margins beat, but the outlook was disappointing on both top line and bottom line, said Ken Sena, an analyst at Evercore.

Amazon forecast first-quarter revenue of $12 billion to $13.4 billion. Wall Street was looking for $13.4 billion, according to Thomson Reuters I/B/E/S.

(Reporting By Alistair Barr; Editing by Richard Chang)