ASX defence shares have had a wild ride this year.
One company in the sector is fielding takeover approaches from two directions at once.
Another has fallen 74% from its high.
Whereas a final one has just delivered its first genuinely profitable half at scale.
All three are funded by the same wave of government spending underpinning the defence sector. This begs the question, why are there so many different narratives?
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Why ASX defence shares have a decade-long tailwind
The money behind this sector is far from speculative.
Australia has committed to lifting defence spending toward 3% of GDP by 2033, which the Australian Strategic Policy Institute (ASPI) puts at roughly $96.6 billion a year in its budget brief.
That is an increase of about $53 billion on previous projections.
However, ASPI also makes the fair point that only around four cents in every announced dollar actually lands inside the current budget year.
The build-out is significant, but it is a decade-long story, and that backdrop underpins every one of the ASX defence shares below.
1. Austal Ltd (ASX: ASB)
Austal is the cheapest name here, yet also the most complicated.
FY26 revenue rose 11% to $2.03 billion, and the order book reached a record $16.5 billion.
The Australasian business delivered record earnings before interest and tax of $85.3 million, up 137% on the prior year.
The group still posted a statutory loss of $53.6 million, because provisions on legacy United States Navy contracts drove a $202.8 million EBIT loss at Austal USA.
That American problem may now be for sale.
Hanwha Defence USA has offered between US$1.05 billion and US$1.2 billion for Austal USA alone, and a second party has since held preliminary talks.
Austal's entire market capitalisation is only about $1.8 billion.
Chief executive Paddy Gregg was clear about what this means strategically for the company:
Outside of the US, never before has the Australian business been in such an enviable position, with a long-term order book and a strategic agreement that will provide decades of stability and growth.
2. DroneShield Ltd (ASX: DRO)
DroneShield is the contrarian pick of the three.
DoneShield shares change hands near $1.75, down from a 52-week high of $6.71, a decline of roughly 74%.
The half-year numbers explain a good deal of that.
Revenue jumped 74% to $125.8 million, yet underlying EBITDA swung to a $12.4 million loss and the statutory result was a $32.2 million loss.
The balance sheet is the reassuring part, with $180 million of cash and no debt at all.
Management has reaffirmed FY2026 revenue guidance of $250 million to $270 million, and committed revenue already stands at $240.4 million.
3. Electro Optic Systems Ltd (ASX: EOS)
Electro Optic Systems had the best half of the three by a wide margin.
Revenue surged 283% to $168.8 million and underlying EBITDA reached a positive $21.6 million, against a $14.9 million loss a year earlier.
The unconditional order book almost doubled to a record $846 million.
The company still reported a statutory loss of $33.7 million, though most of that came from revaluing the MARSS acquisition payment after its own share price rose.
Chief executive Dr Andreas Schwer summed the period up:
The first half year has been exceptionally good. It has been a record year for Electro Optic Systems.
Foolish takeaway
The temptation with ASX defence shares is to treat the whole sector as a single trade. However, it is nothing of the sort.
Austal is being repriced by bidders, Electro Optic Systems by earnings, and DroneShield by scepticism.
I would rather own all three in different sizes than try to pick the one winner.
The spending is committed for a decade, which is a long time for three very different businesses to sort out their respective problems.
