By Dan Gallagher, MarketWatch

SAN FRANCISCO (MarketWatch) -- Technology stocks opened with gains Monday morning, after hard-drive maker Western Digital Corp. said it would acquire Hitachi Global Storage Technologies in a deal valued at $4.3 billion.

Shares of Western Digital (WDC) jumped more than 15% in early trade. The company will pay $3.5 billion in cash and $750 million in stock for the hard-drive business of Hitachi Ltd. (HIT) Hitachi will retain a 10% stake in the combined business and have two directors added to Western Digital's board when the deal closes.

Seagate Technology (STX) -- Western Digital's main rival in the drive space -- saw its shares climb more than 11%. In an early note to clients, Keith Bachman of BMO Capital Markets wrote that Seagate would likely benefit from "share leakage" in picking up some of Hitachi's business.

The Nasdaq Composite Index (RIXF) rose 0.2% to 2,790.5, while the Morgan Stanley High-Tech Index (MSH) added 0.3%.

Among large-cap techs, shares of Hewlett-Packard Co. (HPQ) , IBM (IBM), Microsoft Corp. (MSFT) and Texas Instruments Inc. (TXN) opened in positive territory, while Apple Inc. (AAPL), Dell Inc. (DELL) and Intel Corp. (INTC) all declined.

Shares of Ciena Corp. (CIEND) fell almost 5% in early trade. The maker of telecommunications equipment reported first-quarter results and issued a lower-than-expected forecast for the current period.

 
 
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