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Only S4 Capital and Havas declined, with S4 Capital losing more than 8% in a single week.

Four of the six funds tracked by Marketing Report closed lower on 18 August than on 11 August. Only Publicis Groupe and Omnicom held their ground.

A week after the broad correction, the board turned completely green: all six tracked marcom companies ended the week of 4 to 11 August higher.

WPP maintained its full-year guidance, expecting revenue less pass-through costs to decline by low to mid-single digits in the second half and a headline operating margin of 12 to 13 per cent.

As WPP rolls out its Elevate28 transformation strategy, Druguet is leading the integration of creativity, consulting, technology and AI into a simpler, client-focused model.

Omnicom was the biggest decliner, falling more than 5% after disappointing second-quarter profitability.

The agency will develop a full-funnel media strategy that combines data, technology and creative planning to strengthen consumer engagement and support SharkNinja APAC's growth objectives in India.

Based on those findings, Landor repositioned the brand around the promise of providing "the gas that warms your home with the service that warms your soul."

Kily develops AI agents that automate commerce functions including product listings, pricing and advertising across multiple digital commerce platforms.

WPP posted the strongest performance with a gain of nearly 16%, followed by S4 Capital. Havas was the only company to record only marginal growth.

Provisional standings: LePub, TBWA, and Uncommon Creative Studio record the biggest gains

The projects, which launched alongside a broader transformation of McLaren's trackside facilities, are designed to support the team's operational and commercial ambitions.

This week, Dentsu was the biggest gainer on the back of a series of account wins, while Omnicom came under pressure and Publicis declined despite raising its full-year outlook.

This week's developments are driven by a new round of layoffs at WPP, Havas winning the global media account for Candy Crush from Omnicom agency OMD, and Dentsu launching its own retail data infrastructure.

The biggest gains came from S4 Capital and WPP, up 14.3% and 13.6% respectively—two companies that have faced pressure over recent quarters.

The week's key developments included Adidas moving its global media business to Omnicom, the expansion of WPP Enterprise Solutions, a potential agency shift at Skechers, and reports that Dentsu plans to take its subsidiary Dentsu Soken private.

As part of the expansion, WPP Enterprise Solutions is introducing an initial portfolio of proprietary services designed to support organisations adopting AI and digital transformation.

As Landor London enters a new chapter under new leadership, the agency is positioning itself at the intersection of brand, creativity, technology and business transformation.

The collaboration comes as advertisers face increasing complexity across digital platforms.

WPP Enterprise Solutions, WPP’s business transformation division, will combine its engineering and customer experience capabilities with AWS’s AI infrastructure and services.

A positive week for agency networks, with Publicis posting the biggest gain and S4 Capital the only decliner