European defense stocks sink after NATO summit disappoints investors

European defense stocks fell sharply on Wednesday, with Rheinmetall dropping nearly 5% and the broader sector retreating as investors digested results from the NATO summit in Ankara without finding the catalysts they had hoped for. The selloff came weeks after Franco-German tank manufacturer KNDS suspended its planned initial public offering, citing volatility across the sector.

Post-Summit Selling

The STOXX Europe Total Market Aerospace & Defense Index ↘ 2.41% fell 3.33% on Wednesday, erasing gains the sector had made earlier in the week after NATO Secretary-General Mark Rutte warned that weapons manufacturers were "struggling to keep pace" with surging demand. Rheinmetall shares dropped 4.75% to close at €1,058.80 on the Frankfurt exchange.investing+3

The NATO summit on July 7-8 produced headline commitments including $40 billion in counter-drone capabilities and more than $26 billion in air and missile defense investments over five years. But investors appeared to shift their focus from broad spending pledges to questions of execution and delivery timelines. As Bloomberg reported ahead of the summit, defense stocks have trailed the broader European market in 2026, rising just 3.4% amid doubts over "how much of the military spending promised by governments will actually materialize".bloomberg+1

Defense stocks had also broadly fallen on Tuesday as the summit began, according to Investor's Business Daily, which noted the aerospace and defense sector has struggled since early March.investors

KNDS IPO Shelved Amid Sector Weakness

KNDS, the Amsterdam-based Franco-German company best known for manufacturing Leopard tanks, postponed its IPO on July 1 citing "current market volatility for the European Defence sector," according to a company statement reported by CNBC. The listing had been expected to be one of Europe's largest in recent years and would have enabled the German government to acquire a 40% stake in the company.cnbc+1

Reuters reported that analysts estimate the IPO could be pushed to late 2026 or 2027. The Wall Street Journal confirmed the company said it would "keep a close watch on the conditions of the capital markets" and restart when conditions permit.wsj+1

Rheinmetall's Steep Decline

Rheinmetall's decline has been particularly stark. The stock's all-time closing high was €2,308.40 (approximately $461.68 on U.S. exchanges) reached in September 2025, meaning shares have now fallen more than 50% from their peak. The company was hit in late June when Germany scrapped the F126 frigate program, which could have been worth more than €12 billion, triggering an 18% single-day decline.cnbc+1

The stock's 200-day moving average stands at approximately €1,111, leaving shares trading about 5% below that level. MWB Research analyst Jens-Peter Rieck dropped his buy recommendation for the stock on Thursday as shares continued to slide.marketscreener+1