Omnicom displaced WPP atop the June North American media holding company rankings after nearly doubling its net new-business billings month-over-month, according to Campaign Red data released this week. The shift marks the first time Omnicom has held the top position in the region since March.

Omnicom's June net new-business billings reached $142 million, up from $74 million in May. WPP, which had held the North American lead for two consecutive months, posted $89 million in June billings—a 34% decline from its May performance of $135 million. The rankings track estimated annual billings from new client wins and account losses across media planning and buying operations. Omnicom's June performance was anchored by wins at OMD and PHD, its two largest media networks, which collectively added $98 million in new billings during the period.

The timing is worth noting. Goldman Sachs initiated coverage of the European media sector on the same day the June rankings were released, assigning Omnicom a 'buy' rating with a $115 price target while starting WPP at 'sell' with a 620 pence target. Goldman cited Omnicom's technology infrastructure investments and predictable North American revenue base as key differentiators. The firm projected Omnicom would deliver 3.2% organic growth in 2025 versus WPP's expected 1.8%. For family offices and luxury brands allocating media spend, the divergence is instructive. Omnicom's North American media operations now command approximately $23 billion in annual billings, compared to WPP's $19 billion, according to COMvergence estimates. The gap has widened $1.2 billion since January.

The operational question for CMOs is durability. Omnicom's June surge was driven by three accounts: a $47 million consumer electronics win at OMD, a $31 million automotive reassignment to PHD, and a $20 million retail expansion at Hearts & Science. Two of those three were competitive switches from WPP-owned agencies. WPP's June losses included a $38 million automotive account that moved to Publicis and a $27 million pharmaceutical review loss to Dentsu. The pattern suggests share redistribution rather than category expansion. North American media pitch activity for July through September is already 22% above the same period last year, per R3 Worldwide. That pipeline includes $4.3 billion in combined annual billings across 47 active reviews. Omnicom is participating in 19 of those pitches, WPP in 16. The third-quarter results will clarify whether June was an inflection point or a monthly anomaly.

Luxury and premium categories represent $6.8 billion of the active review pipeline, with $2.1 billion in automotive, $1.9 billion in fashion and beauty, and $2.8 billion in hospitality and travel. Four global luxury brands are conducting North American media reviews in the current quarter, all with incumbent agencies inside the WPP or Publicis networks. Omnicom's OMD has advanced to final rounds in three of those four. The August rankings, expected in mid-September, will reflect those outcomes.