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Shares of

ATI Technologies

( ATYT) were among technology's winners Monday, jumping 17% after the graphics-chip maker agreed to be acquired by

Advanced Micro Devices

(AMD) - Get Advanced Micro Devices, Inc. Report

for about $5.4 billion in cash and stock.

Based on Friday's closing prices, the deal values ATI at $20.47 a share, a premium of 24%. ATI shareholders will receive $4.2 billion in cash and 57 million shares of AMD stock. AMD expects the deal to be slightly accretive to earnings during 2007 and "meaningfully accretive" to earnings during 2008. The acquisition is expected to close during the fourth quarter. Shares of ATI recently were trading up $2.94 to $19.50, while shares of AMD fell 91 cents, or 5%, to $17.35. Shares of

Nvidia

(NVDA) - Get NVIDIA Corporation Report

, ATI's main rival in the graphic-chip market, rose $1.60, or 9%, to $19.37.

Silicon Labs

(SLAB) - Get Silicon Laboratories Inc. Report

vaulted 20% after the chipmaker posted better-than-expected second-quarter results. The company earned $10.1 million, or 18 cents a share, on revenue of $123.5 million. Excluding items, the company earned $21.3 million, or 37 cents a share. Analysts polled by Thomson First Call expected earnings of 33 cents a share, before items, on revenue of $118.7 million. A year earlier, the company posted adjusted earnings of $17.2 million, or 31 cents a share, on revenue of $107.2 million.

For the third quarter, Silicon Labs sees revenue of $122 million to $127 million. Analysts project revenue of $124.9 million. The company also announced a $100 million stock buyback plan. Shares were trading up $5.87 to $35.37.

Shares of

Radcom

TheStreet Recommends

(RDCM) - Get RADCOM Ltd. Report

jumped 12% after the company posted a big jump in second-quarter earnings. The company, which makes network test- and service-monitoring products for communications-service providers, earned $208,000, or a penny a share. Excluding stock-based compensation costs, the company earned $313,000, or 2 cents a share. During the year-earlier period, which did not includes a stock-options expense, the company earned $103,000, or a penny a share. On the top line, revenue increased to $5.7 million from $4.8 million last year.

Looking ahead, Radcom forecast third-quarter revenue of $6.7 million to $7.1 million. Shares were trading up 23 cents to $2.18.

Verizon Communications

(VZ) - Get Verizon Communications Inc. Report

rose 2% after Verizon Wireless, its joint venture with

Vodafone Group

(VOD) - Get Vodafone Group Plc Report

, said it added 1.8 million new retail customers during the second quarter. The recent gains mark the eighth consecutive quarter in which Verizon Wireless has added more than 1.5 million customers. Of Verizon Wireless' 54.8 million overall customers, some 52.6 million are retail customers. Shares of Verizon Communications were trading up 59 cents to $32.46, while shares of Vodafone rose 63 cents, or 3%, to $21.25.

Shares of

Boston Communications

( BCGI), which more than doubled on Friday, tumbled 26% on Monday. On Friday the company agreed to pay Freedom Wireless $55.3 million to settle a patent infringement suit. The payout is much smaller than the $128 million that it was ordered to pay as part of a court ruling in 2005. Boston Communications had previous accrued $64.3 million in estimated losses related to the Freedom litigation. As a result, the company now expects to reverse a portion of the previous recorded loss, resulting in a gain to its operating income. Shares recently were down $1.05 to $2.96.

Other technology movers included

Microsoft

(MSFT) - Get Microsoft Corporation Report

, up 17 cents to $24.04;

Intel

(INTC) - Get Intel Corporation Report

, up 45 cents to $17.60;

Dell

(DELL) - Get Dell Technologies Inc Class C Report

, up 73 cents to $20.64;

Sirius Satellite Radio

(SIRI) - Get Sirius XM Holdings, Inc. Report

, up 3 cents to $3.93;

Oracle

(ORCL) - Get Oracle Corporation Report

, unchanged at $15.12;

Cisco Systems

(CSCO) - Get Cisco Systems, Inc. Report

, up 50 cents to $17.96;

Sun Microsystems

(SUNW) - Get Sunworks, Inc. Report

, up 6 cents to $3.89;

Apple Computer

(AAPL) - Get Apple Inc. Report

, up 26 cents to $60.98;

Motorola

( MOT), up 90 cents to $21.30;

Lucent Technologies

( LU), up 3 cents to $2.07; and

JDSU

(JDSU)

, up 6 cents to $2.14.