WPP plc (WPP) Income Statement

The company's top-line performance has shifted from slight growth in 2022-2023 to accelerating declines throughout 2025 and into 2026. This persistent contraction, now spanning several consecutive periods, suggests fundamental demand challenges within its core advertising and marketing services markets, rather than a temporary blip.

The 640 basis point drop in gross margin from the 19.0% seen in 2021Q4 and 2023Q4 to the current 12.6% indicates a severe loss of pricing power or unfavorable project mix. This structural weakness makes the business highly vulnerable to operating cost fluctuations and erodes its competitive profitability position against industry peers.

The lack of stability in SG&A spending, a primary cost line item, prevents effective operational scaling. For instance, the $1.1 billion SG&A in 2025Q4 on $6.9 billion revenue appears to include significant one-time items, but the pattern of inconsistency makes it difficult to assess underlying expense discipline and complicates profitability forecasting.

The company is failing to demonstrate positive operating leverage; instead, its cost structure appears rigid. With gross profit collapsing and SG&A remaining volatile, the operating margin is trapped at a meager 5.7%, leaving almost no buffer for further revenue declines and signaling poor cost scalability.