Zehnder Group H1 Profit Beats Estimates on Ventilation Strength, Radiators Lag

Zehnder Group AG (ZEHN) reported a mixed financial performance for the first half of 2026, with strong growth in its ventilation business driving a profit beat that was tempered by a contracting radiators segment and significantly weaker cash flow.

A Tale of Two Divisions

The company announced total revenue of €395 million, a 3% increase from the prior-year period, or 4% on a currency-adjusted basis. This figure slightly outpaced consensus estimates, which had projected 1% growth. The results highlight a stark divergence between the company's two main business units.

• The Ventilation division was the clear growth engine, with sales rising 7% to €272 million.
• In contrast, the Radiators division saw revenue decline by 5% year-over-year to €123 million.

Profitability Beats, Cash Flow Falters

Despite the mixed top-line performance, profitability exceeded market expectations. Adjusted earnings before interest and taxes (EBIT) rose 15% to €37.7 million, coming in 9% ahead of consensus estimates. This pushed the adjusted EBIT margin up to 9.5% from 8.5% in the first half of 2025, driven by a strong 13.9% margin in the Ventilation division.

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However, the company's cash generation weakened considerably. Operating cash flow fell to €5.1 million from €23 million in the prior year, a decline Zehnder attributed to an increase in net working capital. The company cited an inventory build-up aimed at ensuring supply capacity. Consequently, free cash flow turned negative at -€3.6 million, a sharp reversal from a positive €16.1 million in the same period of 2025.

Mixed Full-Year Outlook

Looking ahead, Zehnder issued full-year 2026 guidance that presented a mixed picture for investors. The company projects sales between €770 million and €790 million, representing 1% to 4% growth. The midpoint of this range is slightly below the consensus analyst estimate of €788 million.

Conversely, the company's profit outlook is more optimistic. Zehnder expects a full-year adjusted EBIT margin of approximately 9.5%. This implies an adjusted EBIT of around €74.5 million at the sales midpoint, which is 4% above current market expectations.