WPP Group PLC (WPP.LN) is the largest advertising agency, followed by Omnicom Group Inc. (OMC), and then Publicis Groupe SA (PUB.FR). An article at 9:50 a.m. ET about the European Union clearing the Omnicom Publicis merger incorrectly ordered the companies.

WPP (NYSE:WPP)
Historical Stock Chart
From Mar 2024 to Apr 2024 Click Here for more WPP Charts.
WPP (NYSE:WPP)
Historical Stock Chart
From Apr 2023 to Apr 2024 Click Here for more WPP Charts.