ASX Defence Stocks Rally as Iran Ceasefire Wobbles: 4 Names Investors Should Watch on Monday

ASX Defence Stocks Rally as Iran Ceasefire Wobbles

US-Iran tensions flared again on Friday after the US Central Command intercepted Iranian attacks on Navy ships in the Strait of Hormuz. The UAE’s air defences also engaged incoming missiles and drones soon after. The ASX 200 closed down 1.74%, oil pushed above US$101 a barrel, and the April ceasefire looked closer to breaking than holding. For investors, the setup is simple. ASX defence tech doesn’t need a full-blown war to do well. It just needs the world to keep spending on weapons, drones and naval power. Four ASX names enter Monday with their own fresh catalysts that compound this macro tailwind. We believe this is more than a sentiment trade. Each stock has a real, company-specific reason to move.

DroneShield (ASX:DRO): The Pipeline Is Finally Turning Into Cash

DroneShield’s Q1 2026 was a clear step up. Revenue more than doubled year on year, customer cash receipts hit a record, and the company is delivering on its huge sales pipeline. Management is also pushing harder into a software subscription model, which would lift margins meaningfully if it works. The catch is that the stock has already run hard, and Morningstar still rates it overvalued. We believe the long-term story is intact, but new buyers should wait for a pullback rather than chase the headlines.

Electro Optic Systems (ASX:EOS): Backlog Now Tells the Story

EOS lifted its order backlog to A$518 million at the end of March after winning fresh counter-drone contracts, including a big Slinger order from a Middle Eastern customer. The real swing factor is a US$80 million laser weapon deal that management expects to convert from conditional to firm during Q2 2026. In our view, EOS has shifted from a recovery story to a backlog-driven growth story, and Middle East exposure is a feature in today’s environment, not a risk. The key catalyst to watch is the laser conversion.

AML3D (ASX:AL3): Small Cap, Big Validation

AML3D just installed its first portable 3D printing system at the US Navy’s Additive Manufacturing Centre in Virginia, run by Austal USA. The order was small, but the signal is large. A US Navy Letter of Intent flags potential demand for up to 100 systems and 3,400 parts by 2030. We believe AL3 is the highest-risk, highest-reward name in this basket. It suits investors comfortable with small-cap volatility, where a few more contract wins could re-rate the stock meaningfully.

Austal (ASX:ASB): The Steady Anchor With US Navy Tailwinds

Austal is the institutional choice here. FY25 net profit jumped sharply on US Navy contract execution, and the company now has an order book of A$17.7 billion, including the A$4 billion Landing Craft Heavy program awarded in February and an A$150.3 million Australian Border Force patrol boat extensions on 5 May. Its US shipyard is also building submarine modules tied to AUKUS, giving ASB direct leverage to Trump’s push to rebuild American shipbuilding. We believe Austal offers the ballast in this basket. If DRO and AL3 run hot, ASB’s scale and earnings provide stability.

Which Name Suits Which Investor

In our view, EOS offers the cleanest setup heading into Monday. DRO suits investors wanting higher beta. AL3 is for speculative upside. ASB is for ballast. The macro tailwind is real, but after this run, stock selection matters more than ever.