OHB’s Dual Shock: A Thin Float Meets a Formidable New Rival

OHB shares swing on Rheinmetall's entry into satellite production and dilution fears from a planned Re-IPO, despite a €3.35B order book and EU defense tailwinds.

The space sector is rarely dull, but OHB SE is currently testing investors’ nerves with a particularly violent ride. The German aerospace group is juggling an ambitious plan to widen its shareholder base while a heavyweight competitor suddenly enters its home market. The result is a stock that swings wildly between operational optimism and capital-markets anxiety.

OHB shares closed Thursday at €411.50, scoring a sharp 10.32% bounce from the previous session. But the relief was short-lived: the equity remains 14.27% lower on the week. Just one week earlier, on another Thursday, the stock had tumbled 5.2% to €353.50, marking a 26.4% weekly rout. That plunge was triggered by news that Rheinmetall plans to convert its Neuss plant to satellite production, turning the defence giant into a direct rival. Rheinmetall brings deep pockets and a steady flow of military contracts—a combination OHB had not previously faced on its home turf.

Beneath the volatility, OHB’s operational story remains robust. As of the end of March 2026, the order book stood at €3.35 billion, a 45% increase year-on-year. The Space Systems division alone accounts for €2.68 billion of that total, providing clear revenue visibility. Recent contract wins include a €248 million award for 20 small satellites under the EPS-Sterna mission to improve Arctic weather data, as well as work on the RAMSES probe that will study asteroid Apophis before its close flyby of Earth in April 2029. The company also formed a joint venture with Helsing, dubbed KIRK, to develop space-based tactical reconnaissance powered by artificial intelligence—a project aimed at shrinking the time between data collection and target engagement.

The political environment adds further tailwinds. Europe is racing to build independent capabilities in space, Earth observation and defence, areas where OHB is a direct beneficiary. Management has set a revenue target of over €2.0 billion by 2028, reinforcing the long-term growth narrative.

Yet for now, the market is fixated on the capital structure. The company is planning a so-called “Re-IPO” to broaden its shareholder base and raise funds for expanding its defence business. The free float currently sits at a wafer-thin 5.68%; the plan intends to increase it by around 20 percentage points. While a wider float could eventually attract institutional investors and improve index eligibility, the immediate concern is dilution. Until the price, size and placement details become clear, the stock remains hostage to uncertainty over the terms.

Technical indicators underline the tension. The relative strength index (RSI) stood at 49.1 after the Thursday bounce—neutral—but had fallen as low as 42.3 during the earlier sell-off. The 30-day annualised volatility of 138.64% (and 137% in the prior week) confirms extreme disagreement among traders. The stock is still 40.19% below its 52-week high of €688 from May 2026, which valued the company at €7.9 billion. Yet over the past 12 months, OHB has gained 435.81%, and the year-to-date return is 238.68%. The distance from its 52-week low of €64 is over 450%.

The challenge now is balancing these two forces. A clear and well-received capital raise could transform OHB into a more liquid, institutionally owned name. But the arrival of Rheinmetall as a competitor adds a new layer of strategic risk. For the moment, the stock is caught between a stellar order book and the gravitational pull of finance and competition—a dynamic that promises more turbulence before the trajectory becomes clear.