Midday Movers: OMC, BLK, KR & More

Take a look at some of Tuesday's midday movers:

Omnicom fell after the country's largest advertising company said it was cautious due to the looming 'fisal cliff' in the U.S. and leadership transition in China.

(Read More: Intel vs. IBM—Battle of the Earnings )

Blackrock rose on lower-than-expected ETF fee cuts.

Kroger hit a 14-month high after Jefferies upgraded the grocer to "buy" and boosted its price target by 20 percent to $30.

Microsoft moved higher. The company set the price of its new Surface tablet at $499, versus $599 for a comparable version of Apple's new iPad. It will go on sale on October 26.

WW Grainger plummeted after the maker of power tools and other industrial equipment said its profit fell 15 percent, below Street expectations.

Murphy Oil gained ground after announcing it would split in two, authorize a special $2.50 dividend and buyback a billion dollars worth of its shares.

Clearwire fell on reports that Sprint is not planning to buy the company after being acquired by Japan's Softbank .

Diebold lost ground after the ATM maker cut its 2012 earnings and revenue guidance.

Toymakers Hasbro, Jakks Pacific and Leapfrog all advanced after Mattel's strong earnings report.

Isis Pharma fell on concerns its Kynamro drug might not get approval from an FDA panel on Thursday. The news boosted shares of Aegerion, which has a rival drug that is also up for FDA review.

Forest Labs lost ground after the company reported a 91 percent drop in quarterly earnings as sales of its biggest drug Lexapro, to treat depression, plummeted due to rising competition from generics.

Navigant Consulting rose after Avondale upgraded the stock to "market outperform" and raised its price target to $15 from $13.

Lorillard moved higher after Wells Fargo upgraded the stock to "outperform" from "market perform."

(Read More: CNBC's Market Insider Blog )

—By CNBC's Rich Fisherman.

Questions? Comments? Email us at marketinsider@cnbc.com