By Rex Crum, MarketWatch

SAN FRANCISCO (MarketWatch) -- A decline in Broadcom Corp. highlighted action in the tech sector Wednesday after the communications-chip maker gave a mixed update to its fourth-quarter business outlook.

Shares of Broadcom (BRCM) fell more than 4% after the company said late Tuesday that it expects to report sales of $1.9 billion for the quarter ending Dec. 31. Earlier, Broadcom had projected sales of $1.8 billion to $1.9 billion for the period.

However, Broadcom also said that gross margins from its products would be down slightly from the third quarter, instead of remaining flat.

Chip-equipment maker FormFactor Inc. (FORM) dropped more than 6%. Earlier in the week, FormFactor announced several changes to its board of directors.

Declines also came from Hewlett-Packard Co. (HPQ), IBM Corp. (IBM), Texas Instruments Inc. (TXN) and Intel Corp. (INTC).

However, the Nasdaq Composite Index (RIXF) rose almost 9 points to 2,636. The Philadelphia Semiconductor Index (SOX) dipped into the red.

Gainers included Apple Inc. (AAPL), which rose $1.26 a share to $321.52. Before the market opened, Piper Jaffray analyst Gene Munster raised his price target on Apple's stock to $438 a share from $431, mostly due to anticipation that the iPhone will come to Verizon Wireless (VZ) next year.

Yahoo Inc. (YHOO) rose 4 cents a share to $16.67. Late Tuesday, Yahoo confirmed it would cut 4% of its roughly 14,000 employees. .

Advances also came from Microsoft Corp. (MSFT), Dell Inc. (DELL), Qualcomm Inc. (QCOM) and Netflix Inc. (NFLX).

FleetCor Technologies rose $4.19 a share, or almost 18%, to $27.07 after making its public market debut Wednesday. The electronic-payment-card technology company offered to sell 12.7 million shares at $23 apiece, which was at the low end of its initially expected range of $23 to $26 a share.

 
 
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