Heidelberger Druckmaschinen is navigating a period of strategic transformation, simultaneously bolstering its core printing machinery operations while venturing into the defense technology sector. This dual-track approach, however, has yet to resonate with investors. Since the start of the year, the company’s share price has declined by approximately one third.
Core Business Performance Defies Share Price Weakness
Despite the negative market sentiment, the firm’s foundational business shows resilience. For the first nine months of the 2025/26 fiscal year, Heidelberger Druckmaschinen reported revenue growth to €1.6 billion. This represents an increase of about six percent, achieved despite facing negative currency effects amounting to €44 million. The adjusted EBITDA margin also improved, climbing from 5.7% to 7.1%.
Management has reaffirmed its full-year targets, which include revenue of €2.35 billion and an operating margin at the lower end of up to 8%. Furthermore, the company has secured its financial footing by extending a key credit facility until 2030. This move provides the necessary investment capacity to fund its new defense initiative without straining core operations.
A Concrete Step into Defense: The ONBERG Joint Venture
Moving from memorandum to corporate entity, Heidelberger Druckmaschinen and Ondas Autonomous Systems formally established their joint venture, ONBERG Autonomous Systems, on March 18. This operationalizes an agreement initially signed in December 2025. Heidelberg holds a 49% stake in the venture, which aims to penetrate the European market for counter-drone systems, focusing on protecting critical infrastructure.
Heidelberg contributes its industrial manufacturing expertise through its subsidiary HD Advanced Technologies. Ondas provides the essential sensor technology and aerial intelligence capabilities. A dedicated competence center with local assembly is being set up at the Brandenburg an der Havel site, which employs around 380 people. Initial deliveries, including the “Iron Drone Raider” system, are slated for customers in Germany and Ukraine.
The company estimates the addressable market for handheld counter-drone systems at roughly $9.8 billion over the next five years. In Germany alone, management has identified around 2,000 facilities as potential deployment sites. The financial timeline is viewed pragmatically: management anticipates the first meaningful revenue contributions no earlier than the second half of 2026, with operational break-even expected approximately twelve months after reaching full production capacity.
Investor Sentiment Remains Cautious
The market’s reaction to the ONBERG announcement has been characterized more by portfolio repositioning than widespread enthusiasm. Trading volume spiked on the day following the news, at times reaching 422% of an average day’s volume—a signal of significant churn among shareholders rather than broad-based approval.
Currently, investors appear to be weighing the upfront costs of building the defense division more heavily than its long-term growth potential. The equity is trading nearly 27% below its 200-day moving average of €1.86, a clear indicator that market confidence has not yet been restored.
Upcoming Milestones to Provide Clarity
The coming weeks will offer critical tests for Heidelberg’s strategy. In mid-April, management plans to present further details regarding the ONBERG roadmap, offering investors a deeper look into the venture’s progression.
Subsequently, the company will showcase its core business advancements at the interpack 2026 trade fair in Düsseldorf (May 7-13), presenting system solutions for automated packaging production. However, the more decisive financial update will likely come on June 10, with the release of complete fourth-quarter results. These figures will, for the first time, quantify the exact impact of the new defense segment’s investments on the profitability of the established printing business.
