WPP plc (LSE: WPP) closed Thursday at 283.75p, up 3.24%, as the global advertising and communications group saw strong buying interest amid signs of improving organic growth momentum.

WPP is the world’s largest advertising holding company by revenue, with agencies spanning creative advertising, media buying, public relations, and data and technology services, and client relationships with some of the world’s most recognisable consumer brands.

The company has been navigating a multi-year strategic restructuring under chief executive Mark Read, who has been simplifying the agency structure, investing in artificial intelligence capabilities, and working to improve organic revenue growth after a period of underperformance relative to US peers.

Revenues from artificial intelligence-adjacent services have been growing as clients seek help integrating AI into their marketing operations, content production workflows, and media planning processes, and WPP has positioned its agencies to deliver these services at scale.

Data and technology revenue, which includes the GroupM media network and dedicated data analytics businesses, has shown resilience even as some traditional advertising categories have faced headwinds from client budget caution.

The shares have been among the more significant underperformers in the communications sector over the past two years, as investors questioned the pace of the strategic transformation and the competitiveness of the model relative to leaner, more focused US alternatives.

Thursday’s 3.24% gain was one of the stronger single-day moves for the stock, suggesting a significant number of buyers returned to the name following a period of prolonged underperformance.

A 52-week range extending from below 200p to above 500p illustrates how dramatically sentiment on the stock has shifted over the past year, with Thursday’s close sitting well below the year’s highs.

Analyst consensus remains broadly cautious, with several brokers maintaining Hold ratings pending clearer evidence that organic growth can sustainably outperform the market rate, but Thursday’s move suggested some investors are concluding the stock is too cheap to ignore.