Omnicom Takes a Wild Ride

In a week that reflected the jittery nerves of investors, Omnicom Group’s shares closed at $72.69 on Friday, down 3.74 percent from its opening price.

Given the acquisitive nature of the industry in general, and Omnicom’s role as a bellwether among ad stocks, other industry players like Interpublic Group and WPP Group also have shown greater volatility than usual in the past ten days.

The dive in Omnicom’s share price, which has dropped 18 percent since May 28, marks one of the more bizarre episodes in the category’s recent trading history.