While CMOs and other senior business leaders have taken on a larger role when it comes to influencing business technology spending, ownership of the IT budget is still largely in the hands of CIOs, according to a new report from Forrester Research.

Business-only accounts for about 6 percent of U.S. new technology purchases and is rising slowly toward 7 percent, according to the study. About 10 percent of new IT purchases in the U.S. start with the business but shift to the CIO, it says.

Other key findings of the research: More than one-third of new U.S. technology purchases will be made by the CIO and business leaders together; CIO-led purchases that involve the business will shrink from 27 percent in 2010 to 25 percent in 2014; and IT-only purchases will fall from 27 percent to 22 percent in 2014.

How much control of technology spending has shifted away from the CIO and moved into the hands of line-of-business managers is a hot topic among CIOs and vendors, Forrester says. In its report, the company provides a framework for answering that question.

Applying that framework against its detailed breakdown of the new technology purchases in the U.S. from 2009 to 2015, the company estimates that just 7.2 percent of total U.S. spending on new technologies in 2015 will be executed by business units without CIO involvement. Based on trends, that percentage is not likely to rise dramatically, Forrester says.