Apple Inc. said its profit jumped 26 percent in its fiscal fourth quarter as the newest iPhone outsold the market-leading BlackBerry from Research in Motion Ltd.

Despite the blockbuster performance, which sent Apple's shares soaring in after-hours trading, the company issued what it called "prudent" predictions for the current quarter, because of broader economic uncertainty.

For the three months ended Sept. 27, Apple's profit climbed to $1.14 billion, or $1.26 per share, from $904 million, or $1.01 per share in the same period last year.

Sales jumped 27 percent to $7.9 billion from $6.22 billion in the year-ago quarter.

Cupertino, Calif.-based Apple's profit topped Wall Street's expectations, but sales missed. Analysts had expected the company to sell $8 billion worth of Macintosh computers, iPods, iPhones and other gadgets, for a profit of $1.11 per share, according to a Thomson Reuters poll.

On a conference call with analysts, Chief Executive Steve Jobs addressed concerns that economic weakness will eat into Apple's business through the holidays and beyond.

Jobs said Apple's customers are more likely to put off buying a new computer than to defect to other brands of PCs with lower prices. Apple, which is sitting on about $25 billion in cash, could use the downturn to invest in research and development, he said.

"We may get buffeted around by the waves a little bit, but we'll be fine," Jobs said.

SAN FRANCISCO (AP) -- Yahoo Inc. will fire at least 1,500 workers to cope with a crumbling economy that dented its third-quarter profit and turned up the heat on the slumping Internet company's management as investors stew over a missed opportunity to sell to Microsoft Corp. for $47.5 billion.

The purge outlined Tuesday represents a 10 percent reduction in Yahoo's payroll of about 15,000 employees. It's the second time in nine months that Yahoo has resorted to mass layoffs in what so far has been an ineffectual effort to rebound from a financial funk that has left its stock price near a 5 1/2-year low.

Yahoo's housecleaning, to be completed by the end of the year, provides the latest example of how a credit crisis that has already rocked banks and retailers is starting to rattle Silicon Valley, the nation's high-tech heartland.

Online auctioneer eBay Inc. is jettisoning 1,600 jobs while an array of startups are letting go workers to squirrel away more cash as venture capitalists become more cautious with their money. Even Google Inc., a company renowned for its free-spending ways, is starting to cut corners.

"We are going into what is very clearly a recession mode," Blake Jorgensen, Yahoo's chief financial officer, said in a Tuesday interview.

Yahoo felt the squeeze in the third quarter as the Sunnyvale, Calif.-based company earned $54.3 million, or 4 cents per share. That was a plunge of 64 percent from $151.3 million, or 11 cents per share, at the