Shares of Dell fell nearly 4 percent to close at $13.36. Compellent lost 2.5 percent to close at $27.98, although the stock has risen more than 50 percent as speculation has grown that it was one of several potential acquisition targets in the data-storage space.
Dell had disclosed the negotiations with Compellent last week, including a proposed sale price of $27.50 a share, a move that some analysts said may have been aimed at tempering market expectations for a higher deal value.
Texas-based Dell put the final deal's total equity value at about $960 million and the aggregate purchase price at about $820 million, net of Compellent's cash.
The companies said they expect the deal to close in early 2011.
Dell had been looking to expand its data-storage port folio to become more competitive in the corporate technology market. Earlier this year, it lost a bidding war with rival Hewlett-Packard for 3Par Inc.
The 3Par bidding war triggered a rise in the shares of data-storage companies as Wall Street anticipated the wave of data-storage mergers to continue. Compellent shares have soared more than 130 percent since mid-August.
The focus on data storage was based largely on the push toward cloud computing, which lets companies tap computing power through a network instead of in-house data centers.
'Higher margins'Wedbush analyst Kau shik Roy said the Compellent deal gives Dell "a product that is much higher margins than what they sell PCs and servers."
"They are building their own storage product portfolio, which from Dell's standpoint (is) the right to do," he said by e-mail.
But analysts also said the deal could harm Dell's ties to data-storage giant EMC Corp.
"We think the Compellent deal will cause further strain on the EMC relationship," Wells Fargo analyst Jason Maynard said in a note. "However, Dell still has product holes in the high-end storage and deduplication markets, so we think there is room for Dell to continue to resell EMC VMAX and Data Domain."
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