The Standard and Poor's building is seen in New York
The Standard and Poor's building is seen in New York, August 8, 2011. S&P is a division of McGraw-Hill, which will be split into two companies. REUTERS

(Reuters) - McGraw-Hill Cos Inc. plans to split into two public companies, with one holding its Standard & Poor's ratings and index businesses and the other holding its textbook publishing units.

The move, announced Monday, is a major step toward the breakup and reorganization of the mini-conglomerate that was called for by activist investors last month in a meeting with McGraw-Hill directors.

The investors -- Jana Partners LLC, a hedge fund, and the Ontario Teacher's Pension Fund -- argued that breaking up the company would increase its value to shareholders.

A Jana spokesman did not immediately respond to a request for comment.

The company's shares were up 2.6 percent to $39.74 in premarket trade.

Terry McGraw, chairman and chief executive of the company and a great-grandson of the founder, will lead McGraw-Hill Markets, which will hold the Standard & Poor's credit rating business, S&P's market index business and S&P Capital IQ, which provides data and analytical tools on companies and markets.

The company said it has started a search for a new CEO for McGraw-Hill Education, which will contain the textbook publishing and education units. The current head of those businesses is Robert Bahash, 66, a long-time chief financial officer of the corporation who stepped into his current post last year after the top education executive left.

The break-up, which will be structured as a tax-free spinoff of the education business to McGraw-Hill shareholders, is expected to be completed by the end of 2012, the company said in a statement.

The markets businesses will have about $4 billion of revenue in 2011, and the education businesses will have about $2.4 billion in revenue, it said.

McGraw-Hill said it will make significantly cut from $1 billion of current corporate expenses and administrative and technology costs.

Evercore and Goldman Sachs are advising on the spinoff.

The company said it would speed up share repurchases to a total of $1 billion in 2011. It said it has bought back $541 million of stock so far this year.