Rohm and Haas Company (NYSE: ROH) shares surged over 65 percent today after rival Dow Chemical (NYSE: DOW) agreed to purchase the company for $15.3 billion. The $78 per share takeover deal includes funds from a Kuwaiti sovereign wealth fund and Warren Buffett's own Berkshire Hathaway. The 74 percent premium may seen hefty to some shareholders, but Dow Chemical executives insist that the strong brands and technologies make the premium worth paying.

The acquisition represents Dow Chemicals' efforts to expand higher-margin specialty chemical markets, which can help protect it from the ups and downs of basic chemical sales. Recently, the company has been struggling with the performance of its basic businesses due to increases in raw material costs that it has tried to pass on to consumers. This deal will make Dow the largest specialty chemical and advanced materials company in the world.

So, just how much will this magic deal help Dow in the future? Well, some analysts are expecting a big boost. Before the deal, analysts have been expecting Dow to earn around $3.50 per share in 2010 and 2011 during the industry trough, but now they are expecting around $4.50 per share. Meanwhile, in 2015 when dow forecasts the peak, EPS is expected to exceed $10 per share. Meanwhile, Dow expects to realize pretax annual cost synergies of at least $800 million per year.

In the end, many investors view this as a very positive move and do not believe that Dow overpaid. The company has entered into a higher-margin business, which should boost growth and earnings multiples. Meanwhile, the move also helps the company realize cost benefits through economies of scale.

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