Omnicom leads a broader correction across the marcom sector

A week after a broad-based rally, the sector turned red again: five of the six marcom companies tracked posted losses during the week of July 28 to August 4.

Omnicom was the biggest decliner, falling more than 5% after disappointing second-quarter profitability. Publicis Groupe was the only stock to finish higher, while Havas ended the week unchanged.

Omnicom Group

Omnicom fell more than 5%, setting the tone for the sector. Second-quarter results showed revenue of $6.56 billion, ahead of the $6.44 billion expected by analysts, with 6.1% organic growth. However, adjusted EBITDA came in at $1.09 billion, well below the consensus estimate of $1.21 billion, missing expectations by nearly 10%. Adjusted earnings per share of $2.65 met forecasts.

The stock dropped more than 6% immediately after the results were released. MoffettNathanson lowered its price target from $95 to $85, while maintaining a neutral rating.

During the analyst call, Citi questioned why margin expansion was lagging revenue growth. The company's CFO pointed to continued reinvestment in platforms and integration efforts. Goldman Sachs was told that most of the remaining divestments are expected to be completed before year-end. Despite the negative market reaction, management raised its full-year organic growth guidance to 5%.

WPP

WPP lost more than 4%, giving back nearly a third of the strong gains recorded the previous week. Investors are now focused on Thursday, August 6, when the company reports its half-year results.

The results will be closely watched as CEO Cindy Rose and CFO Joanne Wilson host a webcast covering both the financial performance and progress on Elevate28, the strategic programme that will simplify WPP into four operating units across four regions: media, creative, production and enterprise solutions. As part of the restructuring, WPP is bringing its creative, design and PR agencies under a single umbrella while retaining their individual brand identities.

WPP is targeting £500 million in annual cost savings by 2028, against implementation costs of £400 million. The update follows a first quarter in which revenue declined 8.9%.

On the client front, there was more positive news. WPP Media won SharkNinja's integrated media account in India, with Wavemaker leading media duties for the Shark and Ninja brands.

Dentsu Group

Dentsu declined more than 4% without any obvious company-specific catalyst, reflecting the broader weakness across the sector. The company is due to report its half-year results later this month.

Operationally, however, Dentsu strengthened its position in India after Dentsu Creative Isobar won Canon's digital and e-commerce mandate for its Imaging Consumer Business. The assignment covers digital and e-commerce strategy, media, data and consumer insights, digital retail and campaign execution, managed from Mumbai and Gurgaon.

S4 Capital

S4 Capital limited its losses to 2%. This week, subsidiary Monks unveiled a notable departure from the industry's traditional billing model by introducing an annual subscription instead of charging billable hours.

Clients commit to a minimum one-year subscription that provides access to senior talent, AI workflows, AI agents and accumulated knowledge bases, with implementation costs included. The idea is that AI-driven efficiency should generate greater output rather than fewer billable hours.

As Wesley ter Haar put it: "The billable hour leaves no room for meaningful innovation."

The model has been running with one client since October 2025, and the company expects it to account for roughly one-quarter of Monks' revenue by the end of this year.

Publicis Groupe

Publicis Groupe was the week's only gainer, rising 0.5%. While modest, it was the strongest performance among the six companies during an otherwise negative week.

Havas

Havas ended the week exactly where it started, closing at €18.70.

The company continued its share buyback programme, repurchasing 5,000 shares between July 27 and 31 at an average price of €18.58. The purchases form part of the €50 million buyback programme announced on May 13.

At subsidiary Havas Lynx, senior leadership was reshuffled. Claire Knapp, CEO of the UK business, has taken on responsibility for the New York office and will split her time between the two markets. Bruno Rebelo has been appointed Chief Creative Officer of Havas Lynx New York.

This overview is provided for informational purposes only and does not constitute investment advice or a recommendation.