SAN FRANCISCO -- Broadcom ( BRCM) grew its bottom line nearly six-fold in the third quarter, soundly beating Wall Street expectations. And while Broadcom joined the parade of chipmakers warning of a drop in fourth-quarter sales, the projected slowdown was not as sharp as recent forecasts from some of Broadcom's peer companies. Shares of Broadcom were up 8.7%, or $1.20, at $15 in extended trading Tuesday. Broadcom said that sales in the current quarter will decline between 5% and 10% sequentially, for a range of $1.17 billon and $1.23 billion. That's below the $1.28 billion expected by analysts. And it would represent only the second time in the past seven years that the Irvine, Calif.-based chipmaker has experienced a sequential decrease in revenue during the fourth quarter. But the guidance wasn't as ugly as some investors may have feared in the wake of recent reports by other large chipmakers, said Lazard Capital analyst Daniel Amir. "I think people were expecting even worse than that," Amir said. The midpoint of Broadcom's fourth-quarter revenue range calls for sales to decline 7.5%, vs. a 13% decline at the midpoint projected by Texas Instruments ( TXN) and a 15% midpoint sales decline by Linear Technology ( LLTC). Meanwhile, with Broadcom's share price having fallen 44% since the beginning of September, the relative outperformance seemed to relieve investors. In a post-earnings conference call Tuesday, Broadcom executives said the company was entering a period of global economic uncertainty in its best financial health ever.