Drone software company Swarmer skyrockets 520% in first day of trading

Swarmer, a small-cap developer of drone software, saw its shares soar 520% on Tuesday, the first day after its IPO. Against a backdrop of rising geopolitical tensions and increased military spending globally, investors have turned their attention to the defense segment, Bloomberg notes.

Swarmer shares surged 520% on Tuesday, their debut day on the Nasdaq, climbing to $31 apiece. Trading was halted multiple times due to volatility. The first halt came less than a minute after the open, when the stock initially dropped more than 10%, Bloomberg writes.

In premarket trading on Wednesday, the rally continued: Swarmer shares jumped nearly 48%, though the gains had moderated by the start of the regular session.

Such performance marks the strongest first-day showing for a U.S. stock in nearly a year, since the blockbuster debut of conservative media platform Newsmax, Bloomberg calculated. Its shares surged 735% following its IPO.

Investors have focused on the defense sector amid rising geopolitical tensions, Bloomberg explains. The conflicts in Ukraine and Iran have underscored the need for smart, low-cost autonomous battle solutions, Barron’s notes. The war in the Middle East has provided an additional boost to shares of drone technology companies.

Swarmer develops software for drones. Its AI technology enables the coordination of entire swarms of such devices, similar to a flock of birds, Bloomberg reports. The company differentiates itself from competitors in that it is not developing its technology “in peacetime laboratory environments,” but has “maintained continuous combat deployment in Ukraine,” according to its IPO prospectus.

As part of the offering, Swarmer sold 3 million shares at $5 apiece, with an additional 450,000-share underwriter option. The deal valued the company at about $60 million, but as a result of the rally on Tuesday, its market capitalization has now surged to $382.8 million.

In 2025, Swarmer’s revenue declined about 6% to $309,900, while its net loss increased more than fourfold to $8.5 million, according to filings ahead of the listing.

At the same time, Swarmer’s small scale works in its favor, Barron’s notes. Almost any contract win or business expansion can move the needle significantly for the company, and investors appear to be betting that such developments could materialize in the relatively near future.