Rheinmetall Drops 16% in Frankfurt: Why Europe’s Defense Stocks Fell Together

German defense group Rheinmetall lost about 16% of its share value in a single session on the Frankfurt Stock Exchange on Thursday, 5 November 2026. The slide followed the company’s second downward revision of its 2026 targets in three months, and the sell-off spread to other European defense stocks.

Rheinmetall cut its 2026 revenue guidance from a previous range of €13.7–14.2 billion to about €13.2 billion, and lowered its operating margin target from around 19% to about 18.5%. The company had already revised its outlook once in August, citing problems with the German Navy’s F126 frigate programme.

The reasons the company cited were specific and operational: delays in Germany’s Arminius programme for Boxer armoured vehicles are pushing revenue and advance payments into next year; there are delays in acceptance procedures for artillery ammunition batches; and some revenue expected from new business lines will not materialize this year. By Rheinmetall’s own account, the issue is not a shortage of demand but how quickly contracts convert into revenue and cash.

The underlying picture still shows growth: in the first nine months of 2026, sales rose 38% to €8.38 billion and operating profit rose 69% to €1.34 billion. The order backlog, including framework agreements, reached €78 billion as of 30 September, up from €56.7 billion a year earlier. However, third-quarter new orders came in below sales, cumulative operating free cash flow turned negative at -€1.7 billion, and the company dropped its target of cash conversion above 40%.

The drop did not stay isolated. In the same session, Spain’s Indra fell 3.77%, Italy’s Leonardo fell 3.5%, and France’s Thales fell 1.3%; Germany’s RENK and Britain’s BAE Systems also declined. German sensor maker Hensoldt fell more than 8% intraday but closed up 1.4% after its own outlook offered a counterpoint.

There is a US backdrop to the sell-off as well. Democrats won control of both chambers of Congress in the 3 November midterm elections, complicating Donald Trump’s plan to raise the US defense budget from roughly $901 billion currently to a proposed $1.5 trillion for 2027. That outlook pushed Lockheed Martin down nearly 10% over two sessions on Wall Street, with L3Harris down 7%, Raytheon 5.8% and Northrop Grumman 4.5%; the same election result eased some of Europe’s fears about reduced US commitment to NATO, a concern that had been helping lift European defense shares, taking some of that premium away.

Analysts’ key point is that a stock correction alone does not change government procurement plans. Rheinmetall’s backlog grew more than 37% in a year and its sales pace is 38%. But investors now want proof that industrial capacity, suppliers, staffing and certification can actually meet delivery schedules. The market’s focus is shifting from growth potential to programme execution, profitability and cash generation.

For Turkey’s defense industry, the episode shows that the financing side of Europe’s rearmament wave is still being tested. For Turkish firms such as Aselsan and Roketsan engaged in supply-chain and co-production talks with European partners, confidence tied to delivery schedules is likely to carry more weight going forward.

Sources

• Infodefensa, “Rheinmetall se desploma en Bolsa y arrastra a la industria de defensa europea: el mercado pone a prueba el rearme,” by Benjamín Carrasco, 6 November 2026. Read the report. Used as the primary source, based on Rheinmetall’s own guidance update and market data.