Defense Tech's Valuations Keep Climbing. The Battlefield's Verdict Is Still Cheap.

UVision wants up to $4 billion on Nasdaq, Shield AI just closed a deal at a $12.7 billion valuation, and Stark's round swelled to €500 million, even as public defense stocks fall and the war the money keeps citing is being won by $500 drones.

The defense-tech funding boom has reached the point where private valuations are running straight into public-market scrutiny, and the gap between the two is now wide enough to see. On June 21, Israeli loitering-munition maker UVision Air decided to take its planned Nasdaq listing forward at a valuation of $3.5 billion to $4 billion, Calcalist reported, after Israeli institutional investors balked and offered roughly $2.9 billion in a pre-IPO round. The company's owner, Aaron Frenkel, refused to compromise and chose to go straight to Wall Street instead.

That standoff is the whole sector in miniature. The capital keeps arriving and the valuations keep climbing. The investors closest to the public market are the ones who have started to flinch.

The week the capital kept coming

The capital events stacked up across a single week. Shield AI announced on Monday that it had closed its acquisition of simulation-software firm Aechelon Technology, three months after the deal was first disclosed, having raised $1.5 billion in a Series G round plus $500 million in preferred equity at a $12.7 billion post-money valuation, GovConWire reported. German drone maker Stark won a €500 million round that Peter Thiel's Founders Fund joined, the Financial Times reported, days after other outlets had described the company as seeking "at least €300 million" at a valuation near €2.5 billion. Anduril and General Atomics, meanwhile, both received U.S. Air Force production contracts on June 17 for their Collaborative Combat Aircraft, the FQ-44A and FQ-42A uncrewed fighters.

Behind the individual deals sits a number that has become the sector's headline. PitchBook data shows roughly $12.3 billion flowed into defense-technology startups working on drones, autonomous vessels and battlefield AI in the first half of 2026, nearly double the same period last year and already past the previous full-year total of about $9.95 billion, ClashReport noted. By a broader Crunchbase count, the figure reaches $14.6 billion across five months. Either way, the word now attached to it is "bubble": the Financial Times wrote that soaring valuations are fueling "fears of a hype cycle," Moneycontrol reported that "some investors warn of an emerging bubble," and Benzinga asked outright whether investors are funding the next defense giants "or inflating another AI bubble."